HZB Newsroom

Sear results - Keyword: cooperations

  • Science Highlight
    Accelerator physics: Experiment reveals new options for synchrotron light sources
    An international team has shown through a sensational experiment how diverse the possibilities for employing synchrotron light sources are. Accelerator experts from the Helmholtz-Zentrum Berlin (HZB), the German federal metrology institute Physikalisch-Technische Bundesanstalt (PTB), and Tsinghua University in Beijing have used a laser to manipulate electron bunches at PTB's Metrology Light Source so that they emitted intense light pulses having a laser-like character. Using this method, specialised synchrotron radiation sources would potentially be able to fill a gap in the arsenal of available light sources and offer a prototype for industrial applications. The work was published on 24 February 2021 in the leading scientific publication Nature.


  • <p></p> <p>Electron microscopy shows the graphene sample (gray) in which the helium beam has created a hole pattern so that the density varies periodically. This results in the superposition of vibrational modes and the emergence of a mechanical band gap. The frequency of this phononic system can be adjusted between 50 MHz and 217 MHz by mechanical tension.&nbsp;</p> <p></p>
    Science Highlight
    New skills of Graphene: Tunable lattice vibrations
    Technological innovation in the last century was mainly based on the control of electrons or photons. Now, in the emerging research field of phononics, phonons or vibrations of the crystal lattice attract attention. A team at Freie Universität Berlin and Helmholtz-Zentrum Berlin showed a graphene-based phononic crystal whose resonant frequency can be tuned over a broad range and has used a helium-ion microscope to produce such a crystal. This is a real breakthrough in the field of phononics, now published in Nano Letters.


  • <p>Artificial and natural interzones on a tooth restored with non-degradable biomaterials are exposed to mechanical (left: stresses acting in compression, tension and shear) and biological challenges (right: bacterial attachment, penetration, and other interactions with biological media).</p>
    Dental materials science: HZB is part of a research project funded by DFG
    How can dental restorations – such as fillings and crowns – be made to last longer? A new research group centered at Charité – Universitätsmedizin Berlin and Technische Universität (TU) Berlin plans to address this topic by utilizing approaches from both materials science and dentistry. The interdisciplinary ‘InterDent’ research group is funded by the German Research Foundation (DFG). It will receive an initial funding of €2.1 million Euro over three years. Partners also include the Helmholtz-Zentrum Berlin (HZB) and the Max Planck Institute of Colloids and Interfaces (MPI-KG).


  • <p>Overview: Number of patients treated with prontons at HZB from 1998 to 2020.&nbsp;&nbsp;</p>
    The 4000th eye tumour patient treated with protons at HZB

    On 19 February 2021, the 4000th eye tumour patient received irradiation with protons, performed by a joint team from Helmholtz-Zentrum Berlin (HZB) and Charité - Universitätsmedizin Berlin. The number of patients treated in 2020 remained at the previous year's level despite the more difficult corona conditions. The treatment in Berlin-Wannsee is only available for uveal melanomas of the eye. The proton accelerator at HZB is the only therapy site for this disease in Germany.


  • <p>The phonons distribution is complex (upper curves) and then simplifies with time to a Gaussian bell curve (lower curve).</p>
    Science Highlight
    How complex oscillations in a quantum system simplify with time
    With a clever experiment, physicists have shown that in a one-dimensional quantum system, the initially complex distribution of vibrations or phonons can change over time into a simple Gaussian bell curve. The experiment took place at the Vienna University of Technology, while the theoretical considerations were carried out by a joint research group from the Freie Universität Berlin and HZB.


  • <p>Part of the IRIS research labs will be equipped for research on catalysts. Photo</p>
    HZB and Humboldt University agree to set up a catalysis laboratory
    Helmholtz-Zentrum Berlin (HZB) and Humboldt-Universität zu Berlin (HU) have signed a cooperation agreement with the aim of establishing a joint research laboratory for catalysis in the IRIS research building of HU in Adlershof. The IRIS research building offers optimal conditions for the research and development of complex material systems.


  • Nachricht
    21.01.: Seminar zu klimaneutralem Planen, Bauen und Betreiben
    Bauwerkintegrierte Photovoltaik (BIPV) bietet in Städten und Gemeinden enorme Möglichkeiten, aktiv zum Klimaschutz beizutragen. Im Seminar geht es um die baurechtlichen Anforderungen, den Brandschutz und den Einsatz verschiedener PV-Materialien.


  • <p>The illustration visualizes the composition of the tandem solar cell.</p>
    Science Highlight
    Perovskite/silicon tandem solar cells on the threshold of 30% efficiency
    An HZB team has published a report in the journal Science on the development of its current world record of 29.15% efficiency for a tandem solar cell made of perovskite and silicon. The tandem cell provided stable performance for 300 hours – even without encapsulation. To accomplish this, the group headed by Prof. Steve Albrecht investigated physical processes at the interfaces to improve the transport of the charge carriers.


  • <p>The Fermi surface of multidomain GeTe (111) bulk single crystal&nbsp;measured with high-resolution angle-resolved photoemission at BESSY II.</p>
    Science Highlight
    Future Information Technologies: Germanium telluride's hidden properties at the nanoscale revealed
    Germanium Telluride is an interesting candidate material for spintronic devices. In a comprehensive study at BESSY II, a Helmholtz-RSF Joint Research Group has now revealed how the spin texture switches by ferroelectric polarization within individual nanodomains.


  • <p>Scalable large area BiVO<sub>4</sub> photoanode on FTO with Ni current collectors.</p>
    Science Highlight
    Solar hydrogen: Let’s consider the stability of photoelectrodes

    As part of an international collaboration, a team at the HZB has examined the corrosion processes of high-quality BiVO4 photoelectrodes using different state-of-the-art characterisation methods. The result is the first operando stability study of high-purity BiVO4 photoanodes during the photoelectrochemical oxygen evolution reaction (OER). This work shows how the stability of photoelectrodes and catalysts can be compared and enhanced in the future. [...]

  • <p>(a,b) Cryo-electron microscopy of the 2D-grating and the diffraction pattern of a section. (c-e) Magnification shows the 2D Pascal triangular pattern, with the inserted protein molecules.</p>
    Science Highlight
    Nanopatterns of proteins detected by cryo-electron microscopy
    A team from Helmholtz-Zentrum Berlin (HZB) used cryo electron microscopy to detect regular, two-dimensional structures in the form of Pascal triangles in a shock frozen protein material.  The samples have been synthesized by a Chinese research group. The method of cryo electron microscopy has the potential for new insights into energy materials as well. [...]
  • <p>View into the experimental hall of the electron accelerator BESSY II at Helmholtz-Zentrum Berlin. Researchers carry out experiments at approximately 50 beamlines. The aim of the cooperation between the University of Kassel and the HZB is to use artificial intelligence to evaluate these data more efficiently.</p>
    University of Kassel and HZB establish Joint Lab for the use of artificial intelligence

    The University of Kassel and Helmholtz-Zentrum Berlin are setting up a joint laboratory for the use of artificial intelligence, where they will be developing new experimental methods and improving the analysis of data from experiments performed at BESSY II. [...]

  • <p>The participants after signing the cooperation agreement between IKZ and HZB in corona-conform distance: (from left to right) Dr. Andreas Popp (IKZ), Dr. Manuela Urban (FVB), Dr. Peter Gaal (IKZ), Prof. Dr. Catherine Dubourdieu (HZB), Prof. Dr. Thomas Schr&ouml;der (IKZ), Prof. Dr. Bernd Rech (HZB), Thomas Frederking (HZB).</p>
    HZB & IKZ bundle their competencies In crystalline energy and quantum materials
    On September 11, 2020, the Helmholtz-Zentrum Berlin (HZB) and the Leibniz-Institut für Kristallzüchtung (IKZ) signed a cooperation agreement to advance joint research on energy and quantum materials. As part of the cooperation, new types of X-ray optics for synchrotron radiation sources are also being developed. [...]
  • <p>Prof. Birgit Kanngie&szlig;er heads a joint research group on X-ray methods, which is funded by TU Berlin and HZB.</p>
    HZB and TU Berlin: New joint research group at BESSY II
    Birgit Kanngießer is setting up a joint research group to combine X-ray methods in laboratories and at large-scale facilities. In particular, the physicist wants to investigate how X-ray experiments on smaller laboratory instruments can be optimally complemented with more complex experiments that are only possible at synchrotron sources such as BESSY II.  [...]
  • News
    HZB is member of the IGAFA initiative in Adlershof

    Since September 2020, the Helmholtz-Zentrum Berlin is again a member of IGAFA - the Initiative of Non-University Research Institutions in Adlershof. Prof. Dr. Jan Lüning, scientific director of the HZB, was elected to the association's board. [...]

  • <p>Structure of TUB75: the entire MOF architecture (top) and its conductive inorganic unit (bottom)</p>
    Science Highlight
    Molecular architecture: New class of materials for tomorrow's energy storage
    Researchers at the Technische Universität Berlin (TUB) have created a new family of semiconductors, the properties of which were investigated by the Helmholtz-Zentrum Berlin (HZB). The researchers christened the first member “TUB75”. The material belongs to the class called metal-organic frameworks, or MOFs for short, and could open up new opportunities for energy storage. The work was published in Advanced Materials. [...]
  • <p>Intelligent mathematical tools for the simulation of spin systems reduce the computing time required on supercomputers. Some of the fastest supercomputers in the world are currently located at Forschungszentrum J&uuml;lich (shown here is JUWELS).</p>
    Science Highlight
    Mathematical tool helps calculate properties of quantum materials more quickly
    Many quantum materials have been nearly impossible to simulate mathematically because the computing time required is too long. Now a joint research group at Freie Universität Berlin and the Helmholtz-Zentrum Berlin (HZB) has demonstrated a way to considerably reduce the computing time. This could accelerate the development of materials for energy-efficient IT technologies of the future.


  • <p>Grosspeter Tower, Basel 2016</p>
    Seminar für Architekt*innen Bauwerkintegrierte Photovoltaik: Architektur – Gestaltung und Ausführung
    Im September veranstaltet die Beratungsstelle für bauwerkintegrierte Photovoltaik (BIPV) „BAIP“ zusammen mit der Architektenkammer Niedersachsen ein Seminar für Architekt*innen zum Thema Bauwerkintegrierte Photovoltaik: Architektur-Gestaltung und Ausführung [...]
  • <p>For the study, the enzyme endothiapepsin (grey) was combined with molecules from the fragment library. The analysis shows that numerous substances are able to dock to the enzyme (blue and orange molecules). Every substance found is a potential starting point for the development of larger molecules.</p>
    Science Highlight
    New substance library to accelerate the search for active compounds
    In order to accelerate the systematic development of drugs, the MX team at the Helmholtz-Zentrum Berlin (HZB) and the Drug Design Group at the University of Marburg have established a new substance library. It consists of 1103 organic molecules that could be used as building blocks for new drugs. The MX team has now validated this library in collaboration with the FragMAX group at MAX IV. The substance library of the HZB is available for research worldwide and also plays a role in the search for substances active against SARS-CoV-2.


  • <p>This is how the experiment went: Two laser pulses hit the thin film of iron-platinum nanoparticles at short intervals: The first laser pulse destroys the spin order, while the second laser pulse excites the now unmagnetised sample. An X-ray pulse then determines how the lattice expands or contracts.</p>
    Science Highlight
    Robust high-performance data storage through magnetic anisotropy
    The latest generation of magnetic hard drives is made of magnetic thin films, which are invar materials. They allow extremely robust and high data storage density by local heating of ultrasmall nano-domains with a laser, so called heat assisted magnetic recording or HAMR. The volume in such invar materials hardly expands despite heating. A technologically relevant material for such HAMR data memories are thin films of iron-platinum nanograins. An international team led by the joint research group of Prof. Dr. Matias Bargheer at HZB and the University of Potsdam has now observed experimentally for the first time how a special spin-lattice interaction in these iron-platinum thin films cancels out the thermal expansion of the crystal lattice. The study has been published in Science Advances.


  • <p>The new CatLab (blue area) will be built in close proximity to BESSY II and other laboratories.</p>
    Launch of new catalysis centre in HZB-Adlershof
    The Helmholtz-Zentrum Berlin (HZB) is launching a major new project through an interdisciplinary architectural competition: an innovative laboratory and office building for expanding joint catalysis research between the HZB and the Max Planck Society (MPS). Catlab is to become an international beacon for catalysis research that will advance the development of novel catalyst materials urgently needed for the energy transition.


  • <p>At quantum physics atoms, molecules or photons are used to store information.</p>
    Science Highlight
    Benchmarking for quantum technologies
    Does a device do what it's supposed to? This question is not only asked in everyday life. Researchers working with quantum technologies also want to know what novel instruments can do. A team led by Prof. Jens Eisert, a physicist at the Dahlem Center for Complex Quantum Systems of Freie Universität Berlin and at Helmholtz-Zentrum Berlin, together with researchers from the Sorbonne University in Paris, have published an overview of tools that can currently be used to compare and certify quantum devices. The review article is published in Nature Reviews Physics.


  • <p>Illustration of a Cu<sub>x</sub>O<sub>y</sub> structure formed on a AgCu alloy in oxidizing environments described in this work. (c) ACS Applied Materials &amp; Interfaces.</p>
    Science Highlight
    User research at BESSY II: Formation of a 2D meta-stable oxide in reactive environments

    The chemical behaviour of solid material surfaces is an important physical characteristic for applications of catalysis, chemical sensors, fuel cells and electrodes. A research team from the Max Planck Institute for Chemical Energy Conversion has now described an important phenomenon that can occur when metal alloys are exposed to reactive environments at the synchrotron source BESSY II.


  • <p>The illustration shows the changes in the structure of FASnI<sub>3</sub>:PEACl films during treatment at different temperatures.</p>
    Science Highlight
    On the road to non-toxic and stable perovskite solar cells
    The promising halide perovskite materials for solar energy conversion show high efficiencies, but this comes at a cost: The best perovskite materials incorporate toxic lead which poses a hazard to the environment. To replace lead by less toxic elements is not easy since lead-free perovskites show lower stability and poor efficiencies. Now, an international collaboration has engineered a new hybrid perovskite material with promising efficiency and stability. [...]
  • <p>In HoAgGe, holmium spins occupy the corners of triangles that are arranged in a Kagome pattern. The alignment of adjacent spins (left, red arrows) must obey the ice rule: Either two spins protrude into a triangle and one protrude out, or vice versa. As a result the individual triangles behave as if they were magnetic monopoles (right).</p>
    Science Highlight
    Neutron research: Magnetic monopoles detected in Kagome spin ice systems
    Magnetic monopoles are actually impossible. At low temperatures, however, certain crystals can contain so-called quasi-particles that behave like magnetic monopoles. Now an international cooperation has proven that such monopoles also occur in a Kagome spin ice system. Decisive factors were, among others, measurements with inelastic neutron scattering at the NEAT instrument of the Berlin neutron source BER II*. The results have been published in the journal Science. [...]
  • <p>MXenes are 2D materials forming multi-layered particles (left) from which pseudocapacitors are made. Shining X-ray light on MXenes revealed changes of their chemical structure upon intercalation of urea molecules (right) compared to pristine MXenes (center).</p>
    Science Highlight
    Fast and furious: New class of 2D materials stores electrical energy
    Two dimensional titanium carbides, so-called MXenes, are being discussed as candidates for the rapid storage of electrical energy. Like a battery,MXenes can store large amounts of electrical energy through electrochemical reactions- but unlike batteries,can be charged and discharged in a matter of seconds. In collaboration with Drexel University, a team at HZB showed that the intercalation of urea molecules between the MXene layers can increase the capacity of such "pseudo-capacitors" by more than 50 percent. At BESSY II they have analysed how changes of the MXene surface chemistry after urea intercalation are responsible for this. [...]
  • <p>An individual eye shield is made for each patient to protect the surrounding tissue from the proton beam.</p>
    20 percent more patients were treated with proton therapy in 2019

    For more than 20 years, Charité - Universitätsmedizin Berlin and the Helmholtz-Zentrum Berlin (HZB) have jointly offered the irradiation of eye tumors with protons. In 2019, more patients were treated in Berlin-Wannsee than ever before. 276 patients - 20 percent more than in the previous year - underwent proton therapy. The treatment is specialized in choroidal melanomas of the eye. The proton accelerator at HZB is the only treatment facility for this disease in Germany.  [...]

  • Nachricht
    Berlins außeruniversitäre Forschungseinrichtungen schließen sich zusammen
    Berlin als internationale Wissenschaftsmetropole zu stärken, ist Ziel einer gemeinsamen Initiative der außeruniversitären Forschungseinrichtungen der Hauptstadt. Sie haben sich zur BR 50 (Berlin Research 50) zusammengeschlossen, um künftig gemeinsam Strategien für die Forschung und den Austausch mit Politik und Gesellschaft zu entwickeln. Auch das Helmholtz-Zentrum Berlin hat sich der Initiative angeschlossen. Die Kooperation mit den Berliner Universitäten wird hierdurch erleichtert und verstärkt. [...]
  • <p>The x-ray tomography shows ruptures (black) in the regions of electrical contacts (white).</p>
    Science Highlight
    Battery research: Using neutrons and X-rays to analyse the ageing of lithium batteries
    An international team has used neutron and X-ray tomography to investigate the dynamic processes that lead to capacity degradation at the electrodes in lithium batteries. Using a new mathematical method, it was possible to virtually unwind electrodes that had been wound into the form of a compact cylinder, and thus actually observe the processes on the surfaces of the electrodes. The study was published in Nature Communications. [...]
  • <p>Research on the EU project Sharc25 also took place in the EMIL laboratory, where thin films and materials can be analysed with X-rays from BESSY II.</p>
    CIGSe thin-film solar cells: EU Sharc25 project increases efficiency
    Thin-film solar cells made of copper, indium, gallium, and selenium (CIGSe) are cost-effective to produce and now achieve efficiencies of significantly more than 20 percent. This level of performance was achieved through post-processing with alkali elements, and the procedures are suitable for industrial-scale production. Insights into the beneficial effect of these alkali treatments from the EU Sharc25 project have now been collected in an article published in Advanced Energy Materials. [...]
  • <p>Mint plants have been analysed after having grown on contaminated soil samples.</p>
    Science Highlight
    Plants absorb lead from perovskite solar cells more than expected
    Lead from metal-organic perovskite compounds can be absorbed particularly easily by plants. The bioavailability is significantly higher than that of lead from inorganic compounds as found in batteries. This is shown in a study by HZB researcher Antonio Abate with partners in China and Italy, published in Nature communications. [...]
  • <p>The study is displayed on the cover of the journal Chemmedchem.</p>
    Science Highlight
    Cancer research at BESSY II: Binding Mechanisms of Therapeutic Substances Deciphered
    In tumor cells, the DNA is altered in comparison to normal body cells. How such changes can be prevented or inhibited is an exciting field of research with great relevance for the development of cancer treatments. An interdisciplinary team has now analysed the possible binding mechanisms in certain therapeutic substances from the tetrazole hydrazide group using protein crystallography at BESSY II. [...]
  • News
    More information from microscopy images by computing power
    The first meeting of the Helmholtz Ptychography 4.0 Incubator Project took place at the Helmholtz-Zentrum Berlin (HZB) on November 27, 2019. Seven Helmholtz Centres intend to jointly develop advanced image data analysis and processing methods in order to extract more information from electron and X-ray microscopy images. In particular, the approach will be to use “virtual lenses” to correct imaging errors and thus considerably increase the resolution of images. [...]
  • <p>The Russian-German Laboratory operating its own beamline at BESSY II.</p>
    New instrument at BESSY II commences user operation
    A new instrument became available to the users of BESSY II on Oct. 28, 2019. The new beamline and apparatus for spin- and angular-resolved photoemission in the Russian-German Laboratory at BESSY II have successfully completed their test phase. They facilitate precise measurements of the electron band structure and spin of different material classes such as topological insulators and magnetic sandwich structures, as well as novel perovskite-based solar-cell materials. A photoelectron microscope has also been developed which is particularly important for nanoscopic structures.


  • Interview
    Joint research group for quantum computing and simulation
    Freie Universität Berlin and Helmholtz-Zentrum Berlin (HZB) are now strengthening their cooperation in the field of quantum computing with a new research group. Quantum materials exhibit very interesting properties, which researchers want to use to make data processing significantly faster and more efficient than is currently possible. They can study these materials excellently at synchrotron radiation sources such as BESSY II. It has proven especially promising to predict the material properties in quantum simulations before running the experiments. Taking this approach allows such experiments to be conducted more targetedly. [...]
  • <p>Marko Jo&scaron;t was a PhD student in the HySPRINT-Lab in Steve Albrecht's group. Now he will continue his research on tandem solar cells at the university of Lubljana.</p>
    Helmholtz Association promotes HZB cooperation with Slovenia on perovskite silicon tandem solar cells
    A HZB team has successfully raised funds from the “Helmholtz European Partnering Program” of the Helmholtz Association to expand cooperation with partners of the University of Ljubljana, Slovenia. The topics of the cooperation are tandem solar cells made of perovskite and silicon and, in particular, their precise characterisation. [...]
  • <p>From left to right: Prof. Bernd Rech of HZB, Prof. Ulrich S. Schubert of CEEC Jena, and the President of Jena University, Prof. Walter Rosenthal, seal the cooperation.</p>
    Memorandum of Understanding signed between University of Jena and HZB
    Thuringa’s minister of science gives the green light for the cooperation on research into new energy stores: Friedrich Schiller University Jena and Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) today have laid the foundation for close collaboration with the signing of a Memorandum of Understanding. The Centre for Energy and Environmental Chemistry Jena (CEEC Jena) and HZB want to join forces to research novel energy storage materials and systems in the future. [...]
  • <p>View into the experimental hall of BESSY II at HZB, Berlin.</p>
    Physicists develop "time machine" for materials research

    Researchers from Martin Luther University Halle-Wittenberg (MLU), Freie Universität Berlin and Technische Universität München will develop fast electronics for data acquisition at BESSY II. It will make it possible to record the signal of all X-ray flashes generated during the experiment. This will enable researchers to evaluate the data more extensively - even retrospectively. The Federal Ministry of Education and Research (BMBF) is funding the project with two million euros. [...]

  • <p>A team of researchers examined an ancient papyrus with a supposed empty spot. With the help of several methods, they discovered which signs once stood in this place and which ink was used.</p>
    Science Highlight
    Archaeology at BESSY II: “Invisible ink” on antique Nile papyrus revealed
    Researchers from the Egyptian Museum and Papyrus Collection, Berlin universities and Helmholtz-Zentrum Berlin studied a small piece of papyrus that was excavated on the island of Elephantine on the River Nile a little over 100 years ago. The team used serval methods including non-destructive techniques at BESSY II. The researchers’ work, reported in the Journal of Cultural Heritage, blazes a trail for further analyses of the papyrus collection in Berlin. [...]
  • <p>The new german russian undulator beamline at BESSY II</p>
    German Russian collaboration further strengthened at HZB
    HZB physicist Jaime Sánchez-Barriga establishes a "Helmholtz-RSF Joint Research Group". Over the next three years he will receive additional funding from the Helmholtz Association and the Russian Science Foundation (RSF) to investigate magnetic quantum materials for future information technologies with partners from the Lomonosov State University in Moscow. In particular, the funding should also enable the exchange and training of young scientists. [...]
  • <p>At the MX-Beamlines at BESSY II, Gottfried Palm, Gert Weber and Manfred Weiss could solve the 3D structure of MHETase.</p>
    FOCUS TOPIC: Using BESSY II to combat plastic waste
    Plastics are excellent materials: extremely versatile and almost eternally durable. But this is also exactly the problem, because after only about 100 years of producing plastics, plastic particles are now found everywhere – in groundwater, in the oceans, in the air, and in the food chain.


  • <p>The neutron school at ANSTO in cooperation with HZB experts could transfer knowledge and skills in neutron research.</p>
    Traditional HZB Neutron School will be continued at ANSTO in Australia
    This summer, researchers at the Australian neutron source ACNS organised a joint neutron school at Australia's Nuclear Science and Technology Organisation ANSTO. The HZB-ANSTO neutron school will take place every two years.  [...]
  • <p>Group picture at arrival day at HZB.</p>
    Summer in the laboratory: 24 students from all over the world start their summer project
    For eight weeks the summer students are now working on a research project at the Helmholtz Centre Berlin. Experienced scientists of the HZB will support them. On Thursday, 30 August, they will present their results. [...]
  • Science Highlight
    Oldest completely preserved lily discovered
    Already 115 million years ago, tropical flowering plants were apparently very diverse and showed all typical characteristics. This is the conclusion of an international team of researchers led by Clément Coiffard, Museum für Naturkunde Berlin. The team reported in the renowned journal Nature Plants on the oldest completely preserved lily, Cratolirion bognerianum, which was discovered at a site in present-day Brazil. With the help of 3D computer tomography at the Helmholtz-Zentrum Berlin, details on the back of the fossilised plant could also be analysed. The results raise new questions about the role of the tropics in the development of past and present ecosystems. [...]
  • News
    Photovoltaics are growing faster than expected in the global energy system
    Dramatic cost reductions and the rapid expansion of production capacities make photovoltaics one of the most attractive technologies for a global energy turnaround. Not only the electricity sector, but also transport, heating, industry and chemical processes will in future be supplied primarily by solar power, because it is already the cheapest form of electricity generation in large parts of the world. This is where opportunities and challenges lie - at the level of the energy system as well as for research and industry. Leading international photovoltaic researchers from the Global Alliance for Solar Energy Research Institutes describe the cornerstones of future developments in an article published in the journal "Science" on 31 May. [...]
  • <p>The illustration is alluding to the laser experiment in the background and shows the structure of TGCN.</p>
    Science Highlight
    Organic electronics: a new semiconductor in the carbon-nitride family
    Teams from Humboldt-Universität and the Helmholtz-Zentrum Berlin have explored a new material in the carbon-nitride family. Triazine-based graphitic carbon nitride (TGCN) is a semiconductor that should be highly suitable for applications in optoelectronics. Its structure is two-dimensional and reminiscent of graphene. Unlike graphene, however, the conductivity in the direction perpendicular to its 2D planes is 65 times higher than along the planes themselves. [...]
  • News
    Development of a miniaturised EPR spectrometer
    Several research institutions are developing a miniaturized electron paramagnetic resonance (EPR) device with industrial partner Bruker to investigate semiconductor materials, solar cells, catalysts and electrodes for fuel cells and batteries. The Federal Ministry of Education and Research (BMBF) is funding the "EPR-on-a-Chip" or EPRoC project with 6.7 million euros. On June 3, 2019, the kick-off meeting took place at the Helmholtz-Zentrum Berlin. [...]
  • <p>HZB-Teams are exploring and developing new technologies for perovskite based solar cells in the innovation lab HySPRINT.</p>
    LAUNCH OF EPKI: European Perovskite Initiative for the development of Perovskite based solar technology
    Perovskite based solar cells have made tremendous progress over the last decade achieving lab-scale efficiencies of 24.2% early 2019 in single-junction architecture and up to 28% in tandem (perovskite associated with crystalline silicon), turning it into the fastest-advancing solar technology to date. With the HySPRINT project and the recruitment of highly talented young scientists, Helmholtz-Zentrum Berlin has built up a considerable research capacity in the field of perovskite materials in recent years and is participating in the European Perovskite Initiative EPKI that has now been launched. [...]
  • <p>The enzyme MHETase is a huge and complex molecule. MHET-molecules from PET plastic dock at the active site inside the MHETase and are broken down into their basic building blocks.</p>
    Science Highlight
    "Molecular scissors" for plastic waste
    A research team from the University of Greifswald and Helmholtz-Zentrum-Berlin (HZB) has solved the molecular structure of the important enzyme MHETase at BESSY II. MHETase was discovered in bacteria and together with a second enzyme - PETase - is able to break down the widely used plastic PET into its basic building blocks. This 3D structure already allowed the researchers to produce a MHETase variant with optimized activity in order to use it, together with PETase, for a sustainable recycling of PET. The results have been published in the research journal Nature Communications. [...]
  • <p>Facade with integrated CIGS thin-film solar modules at the institute building of the ZSW in Stuttgart.</p>
    Thin-film PV is key technology to drive global energy transition
    The German research institutes ZSW and HZB see huge potential in CIGS for both climate and business. CIGS thin-film PV is set to become a key pillar of the global transition towards renewable energy sources. With its high performance, low costs, small carbon footprint, and visual appearance, CIGS has some considerable advantages against other technologies, especially when it comes to highly demanding applications like buildings and vehicles. A new whitepaper compiled by ZSW and HZB describes in detail the benefits of CIGS and the huge business opportunities arising from it. [...]
  • News
    HZB to participate in two Clusters of Excellence
    Scientists at the Helmholtz-Zentrum Berlin (HZB) are researching novel systems of materials that can convert or store energy. The HZB will now also be contributing this expertise to the "MATH+" and "UniSysCat" Excellence Clusters being coordinated by Berlin universities. Over the next three years, the Helmholtz Association will fund HZB's participation under the Helmholtz Excellence Network with a total of 1.8 million euros. [...]
  • <p>New solutions are available to integrate PV into the building skin. One beautiful example is the Copenhagen International School.</p>
    Towards the Climate Neutral City: Independent consulting office for integrating photovoltaics into buildings
    The Helmholtz-Zentrum Berlin is opening a national consulting office for integrating photovoltaics into buildings (BAIP) this spring. The consulting office will support building owners, architects, and municipal planners in activating building envelopes for power generation. The project is being funded by the Helmholtz Association over a period of four years as part of its knowledge transfer programme.

  • <p>Marcus B&auml;r, here in EMIL lab at HZB, has accepted a professorship at FAU in South-Germany.</p>
    Marcus Bär accepts W2 professorship for X-ray spectroscopy in Erlangen-Nuremberg
    Prof. Marcus Bär has accepted a professorship for X-ray spectroscopy at the Friedrich-Alexander Universität Erlangen-Nürnberg (FAU). Bär heads the Department of Interface Design at Helmholtz-Zentrum Berlin (HZB). The new W2 professorship was established in cooperation with HZB and Forschungszentrum Jülich in order to strengthen the Helmholtz-Institute Erlangen-Nürnberg für Renewable Energy (HI ERN). In the future, Bär will also be working on HI ERN research topics at HZB, thereby contributing to the intensification of cooperation. [...]
  • <p>(a) Neutronen-Eigenspannungsmessung an einer Schwei&szlig;probe aus handels&uuml;blichen Stahl, (b) Magnetfeldmessung, (c) Schwei&szlig;nahtquerschliff.</p>
    Science Highlight
    Neutronenforschung hilft bei der Entwicklung von zerstörungsfreien Prüfverfahren
    Materialermüdung zeigt sich häufig zuerst daran, dass im Innern des Materials Bereiche mit stark unterschiedlichen Eigenspannungen aneinandergrenzen. An der Neutronenquelle BER II am HZB hat ein Team der Bundesanstalt für Materialforschung und –prüfung (BAM) die Eigenspannungen von Schweißnähten aus ferromagnetischem Stahl analysiert. Die Ergebnisse helfen zerstörungsfreie elektromagnetische Prüfverfahren zu verbessern. [...]
  • <p>From left to right: Prof. Dr. Jan L&uuml;ning (HZB, design. GF), Dr. Roland Steitz (HZB), H.E. Dr. Khaled TOUKAN (Chairman of Jordan Atomic Energy Commission), Dr. Antje Vollmer (HZB), Mr Akram Hayjeneh (Jordan Embassy in Berlin), Dr. Samer Kahook (Manager of JRTR Jordan Atomic Energy Commission).</p>
    Delegation from Jordan visited the HZB
    The Helmholtz-Zentrum Berlin (HZB) will intensify its cooperation with Jordanian large-scale research facilities. This was agreed between Prof. Dr. Jan Lüning and representatives of a high-ranking Jordanian research delegation, which visited the HZB at the end of November 2018.  [...]
  • <p><span>The APPLE II UE56 double undulator generates brilliant light with variable polarization.</span></p>
    HZB builds undulator for SESAME in Jordan
    The Helmholtz-Zentrum Berlin is building an APPLE II undulator for the SESAME synchrotron light source in Jordan. The undulator will be used at the Helmholtz SESAME beamline (HESEB) that will be set up there by five Helmholtz Centres. The Helmholtz Association is investing 3.5 million euros in this project coordinated by DESY. [...]
  • <p>Computer scientist Andreas Maier, materials researcher Silke Christiansen and medical expert Georg Schett have been awarded with an ERC Synergy Grant. </p>
    ERC Synergy grant with HZB participation
    Novel X-ray microscope to produce microstructural images in situ and in vivo [...]
  • <p>Doped Diamond Foam. </p>
    Science Highlight
    Nanodiamonds as photocatalysts
    Diamond nanomaterials are considered hot candidates for low-cost photocatalysts. They can be activated by light and can then accelerate certain reactions between water and CO2 and produce carbon-neutral "solar fuels". The EU project DIACAT has now doped such diamond materials with boron and shown at BESSY II how this could significantly improve the photocatalytic properties. [...]
  • <p>Prof. Dr. Andrea Denker is the head of the department "Proton Therapy" at HZB.</p>
    Andrea Denker is Professor of "Accelerator Physics for Medicine"
    The Beuth Hochschule für Technik Berlin and the Helmholtz-Zentrum Berlin (HZB) have appointed Prof. Dr. Andrea Denker to the joint professorship "Accelerator Physics for Medicine" as of October 1, 2018. Since 2006, Andrea Denker is head of the department "Proton Therapy" at the HZB, which operates the accelerator for eye tumor therapy. The therapy, offered in cooperation with the Charité - Universitätsmedizin Berlin and the HZB, is unique in Germany. [...]
  • <p>The theory group with Joe Dzubiella. </p>
    Collaboration between HZB and the University of Freiburg
    Through a Joint Research Group entitled “Simulation of Energy Materials“ Prof. Joachim Dzubiella of the Albert-Ludwigs-Universität, Freiburg will be able to continue his collaboration with the HZB. The theoretical physicist headed the “Theory and Simulation“ group at the HZB until recently and worked closely together with colleagues conducting experimental research. The new research group will concentrate on electrochemical energy storage and solar fuels. [...]
  • <p>View into the new HySPRINT laboratory at HZB, where perovskit solar cells can be produced and tested. Photo: HZB/M. Setzpfandt</p>
    2.8 Mio Euro Funding for preparing perovskite solar cells for high volume manufacturing
    HZB participates in a new consortium for Perovskite solar technology that is led by Oxford PV Germany GmbH. The consortium is funded by the German Ministry of Economics and Energy with 2.8 Million Euros and aims to further demonstrate the manufacturability of perovskite-silicon tandem solar cells. [...]
  • <p>The HySPRINT logo (Helmholtz Innovation Lab) printed on a copper solution symbolizes how the thinnest material layers can be produced simply and cost-effectively. Possible applications are solar cells, organic LEDs or transistors. Photo </p>
    Printing solar cells and organic LEDs
    Humboldt-Universität zu Berlin and Helmholtz-Zentrum Berlin form a joint lab and research group “Generative production processes for hybrid components”. [...]
  • <p>The laser pulse (red) generates heat in the thin-film system. The physical mechanisms by which the heat is distributed can be analysed by temporally resolved X-ray diffraction experiments. </p>
    Science Highlight
    Future information technologies: nanoscale heat transport under the microscope
    A team of researchers from the Helmholtz-Zentrum Berlin (HZB) and the University of Potsdam has investigated heat transport in a model system comprising nanometre-thin metallic and magnetic layers. Similar systems are candidates for future high-efficiency data storage devices that can be locally heated and rewritten by laser pulses (Heat-Assisted Magnetic Recording). Measurements taken with extremely short X-ray pulses have now shown that the heat is distributed a hundred times slower than expected in the model system. The results are published in Nature Communications. [...]
  • <p>The analysed perovskite cell has a surface of 1 cm<sup>2</sup>. Credit. Uni Potsdam</p>
    Science Highlight
    Insight into loss processes in perovskite solar cells enables efficiency improvements
    In perovskite solar cells, charge carriers are mainly lost through recombination occurring at interface defect sites. In contrast, recombination at defect sites within the perovskite layer does not limit the performance of the solar cells at present. Teams from the University of Potsdam and the Helmholtz-Zentrum Berlin (HZB) were able to reach this interesting conclusion through extremely accurate quantitative measurements on 1 cm2 perovskite cells using photoluminescence. Their results contribute to improving  perovskite solar cells and have now been published in Nature Energy. [...]
  • <p>Manganese compounds also play a role as catalysts in photosynthesis. </p>
    Science Highlight
    Insight into catalysis through novel study of X-ray absorption spectroscopy
    An international team has made a breakthrough at BESSY II. For the first time, they succeeded in investigating electronic states of a transition metal in detail and drawing reliable conclusions on their catalytic effect from the data. These results are helpful for the development of future applications of catalytic transition-metal systems. The work has now been published in Chemical Science, the Open Access journal of the Royal Society of Chemistry. [...]
  • <div class="ce__subline ce__subline--black font--h7">&Uuml;bergabe der Technologieberichte an den parlamentarischen Staatssekret&auml;r Thomas Barei&szlig; (BMWi) durch Prof. Dr.-Ing. Manfred Fischedick und Dr. Peter Viebahn, (Wuppertal Institut) sowie Prof. Dr. Martin Wietschel (Fraunhofer ISI) und Juri Horst (IZES gGmbH). Quelle: Susanne Eriksson/BMWi</div>
<div class="ce__data-full"></div>
    Science Highlight
    Wissenstransfer: Neues Standardwerk zu Energietechnologien in Deutschland
    Vertreter des Wuppertal Instituts haben dem Bundesministerium für Wirtschaft und Energie (BMWi) einen mehrbändigen Bericht zu Energietechnologien übergeben. Dabei haben Experten aus dem HZB-Institut PVcomB am Themenfeld Photovoltaik mitgewirkt. Im Herbst verabschiedet die Bundesregierung das neue 7. Energieforschungsprogramm (EFP). Der Bericht liefert eine wissenschaftliche Basis für die Entwicklung des Programms. [...]
  • <p>Participants from partner institutions at the GRECO kick off in Madrid on 25. June 2018.</p>
    GRECO kick-off in Madrid: advancing photovoltaics through “open science”
    The Helmholtz-Zentrum Berlin (HZB) is one of ten international partners in the GRECO pilot project funded under the European Union framework programme Horizon 2020. They intend to jointly test OpenScience approaches for exchanging knowledge and research data in order to accelerate the development of innovative PV products worldwide. GRECO will receive three million euros in funding through 2021. [...]
  • <p>The homepage: <a href="http://grafox.pdi-berlin.de/">http://grafox.pdi-berlin.de/</a></p>
    HZB expert contributes to Leibniz platform GraFOx
    The platform "GraFOx" of the Leibniz Association bundles the activities and competences of Berlin research institutes and universities in the field of oxide research for electronic applications. Now Prof. Dr. Catherine Dubourdieu has been involved as an Associate Partner. The internationally renowned expert heads the Institute "Functional Oxides for Energy-Efficient Information Technology" at the Helmholtz-Zentrum Berlin. [...]
  • <p>Nils M&aring;rtensson, University of Uppsala, cooperates closely with HZB.<strong><br /></strong></p>
    Helmholtz International Fellow Award for Nils Mårtensson
    The Helmholtz Association has presented the Swedish physicist Nils Mårtensson with a Helmholtz International Fellow Award.  The synchrotron expert of the University of Uppsala, who heads the nobel comitee for physics, cooperates closely with the HZB-Institute Methods and Instrumentation for Synchrotron Radiation Research. [...]
  • <p>The transparent anti-corrosion layer contains Rhodium nanoparticles as a catalyst. Credit ACS Energy Letters.</p>
    Science Highlight
    New world record for direct solar water-splitting efficiency
    Hydrogen will play a central role as a storage medium in sustainable energy systems. An international team of researchers has now succeeded in raising the efficiency of producing hydrogen from direct solar water-splitting to a record 19 per cent. They did so by combining a tandem solar cell of III-V semiconductors with a catalyst of rhodium nanoparticles and a crystalline titanium dioxide coating. Teams from the California Institute of Technology, the University of Cambridge, Technische Universität Ilmenau, and the Fraunhofer Institute for Solar Energy Systems ISE participated in the development work. One part of the experiments took place at the Institute for Solar Fuels in the Helmholtz-Zentrum Berlin. [...]
  • <p>Perovskite-based tandem solar cells can achieve now efficiencies better than 25%.</p>
    Science Highlight
    Perovskite-silicon solar cell research collaboration hits 25.2% efficiency
    A 1 cm2 perovskite silicon tandem solar cell achieves an independently certified efficiency of 25.2 %. This was presented this week at an international conference in Hawaii, USA. The cell was developed jointly by HZB, Oxford University and Oxford PV - The Perovskite CompanyTM. [...]
  • News
    Helmholtz Association supports ATHENA with 29.99 mio. euro grant
    ATHENA (“Accelerator Technology HElmholtz iNfrAstructure”) is a new research and development platform focusing on accelerator technologies and drawing on the resources of all six Helmholtz accelerator institutions (DESY, Jülich Research Centre, Helmholtz Centre Berlin, Helmholtz Centre Dresden-Rossendorf HZDR, KIT and GSI with the Helmholtz Institute of Jena). The Helmholtz Association has now decided to pay almost 30 million euros towards ATHENA as a strategic development project. [...]
  • <p>Semi transparent PV-elements in the train station in Perpignan, France.</p>
    Alliance Building Integrated Photovoltaics: Björn Rau joins Management Board
    The General Meeting of Alliance for Builiding Integrated Photovoltaics (BIPV) has unanimously elected physicist and photovoltaic expert Dr. Björn Rau, Helmholtz-Zentrum Berlin, to the BIPV Management Board. [...]
  • News
    HZB experts present cooperation opportunities at Intersolar Europe in Munich
    The international exhibition “Intersolar” brings photovoltaic research and the solar industry together. It is a perfect opportunity for researchers from Helmholtz-Zentrum Berlin to present thin-film photovoltaic technologies and projects, including for example perovskite solar cells and tandem solar cells. [...]
  • <p>First author is the mathematician Sibylle Bergmann, whose PhD work is funded by MiCo. </p>
    Science Highlight
    Helmholtz Virtual Institute MiCo: Article selected as journal highlight for 2017
    The Helmholtz Virtual Institute MiCo offers a platform through which the Helmholtz-Zentrum Berlin conducts joint research with universities and other partners on the topic of microstructures for thin-film solar cells. The journal Modelling and Simulation in Materials Science and Engineering recently selected an article produced through MiCo as the highlight of those published by the journal during 2017. [...]
  • <p>More than 50 participants from Israel and Berlin initiated the international research school HI-SCORE with a kick off meeting.</p>
    HI-SCORE international research school: Kick Off Meeting in Berlin
    The international research school on solar energy promotes exchange between Germany and Israel and excellent conditions for PhD students. [...]
  • <p>Laser light for writing and erasing information &ndash; a strong laser pulse disrupts the arrangement of atoms in an alloy and creates magnetic structures (left). A second, weaker, laser pulse allows the atoms to return to their original lattice sites (right). </p>
    Science Highlight
    Writing and deleting magnets with lasers
    Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia in Charlottesville, USA have found a way to write and delete magnets in an alloy using a laser beam – a surprising effect. The reversibility of the process opens up new possibilities in the fields of material processing, optical technology, and data storage. [...]
  • News
    LEAPS join forces with the European Commission to strengthen Europe’s leading role in science
    “A world where European science is a catalyst for solving global challenges, a key driver for competitiveness and a compelling force for closer integration and peace through scientific collaboration.” This is the vision of LEAPS, League of European Accelerator-based Photon Sources, on which the LEAPS Strategy 2030 is based. Director Jean-David Malo, DG Research and Innovation, received the strategy today at the Bulgarian Presidency Flagship Conference on Research Infrastructures. [...]
  • <p>PCN nanolayers under sunlight can split water. </p>
    Science Highlight
    Solar–to-hydrogen conversion: nanostructuring increases efficiency of metal-free photocatalysts by factor eleven
    Polymeric carbon nitrides exhibit a catalytic effect in sunlight that can be used for the production of hydrogen from solar energy. However, the efficiency of these metal-free catalysts is extremely low. A team at the Tianjin University in China, in collaboration with a group at the Helmholtz-Zentrum Berlin, has increased the catalytic efficiency of these polymeric carbon nitrides by a factor eleven through a simple process resulting in a larger surface area. The paper was published in the journal Energy & Environmental Science. [...]
  • <p>Benjamin Rotenberg is a guest researcher at the HZB-Institute for Solar Fuels in 2018. </p>
    Guest researcher at HZB: Bessel Prize Winner Benjamin Rotenberg
    Prof. Benjamin Rotenberg has received a Friedrich Wilhelm Bessel Research Prize from the Alexander von Humboldt Foundation for 2018 and will be spending time regularly as a guest researcher at the Helmholtz-Zentrum Berlin. Rotenberg is a researcher of the Centre National de Recherche Scientifique (CNRS) and heads a research group in Sorbonne Université in Paris. He works in an interdisciplinary area spanning physics and chemistry for modelling transport processes in materials, at interfaces, and in electrolytes. [...]
  • News
    HZB launches Helmholtz International Research School in collaboration with Israel
    On 1st February 2018, the Helmholtz-Zentrum Berlin (HZB) has established the Helmholtz International Research School HI-SCORE, which will be oriented towards solar energy research. To accomplish this, HZB is collaborating with the Weizmann Institute in Rehovot, the Israeli Institute of Technology (Technion) in Haifa, and three Israeli universities as well as universities in Berlin and Potsdam. [...]
  • <p>Oxford PV &ndash; The Perovskite Company's industrial site in Brandenburg an der Havel, Germany where the company is working rapidly to transfer its advanced perovskite on silicon tandem solar cell technology to an industrial scale process.</p>
    Oxford PV collaborates with HZB to move perovskite solar cells closer to commercialisation
    Perovskite solar technology leader Oxford PV collaborates with leading German research centre to support the accelerated transfer of its technology into silicon cell manufacturing lines. [...]
  • <p>The energy yields of CIGS modules under real world conditions can be measured on a outdoor testing platform at PVcomB.</p>
    PVcomB and AVANCIS launch joint MyCIGS research project in order to improve outdoor performance of thin film CIGS solar modules
    The Competence Centre Thin-Film- and Nanotechnology for Photovoltaics Berlin (PVcomB) is contributing its expertise to improving copper-indium-gallium-sulphide (CIGS) thin-film production in the MyCIGS collaborative research project. CIGS-module manufacturer AVANCIS in Munich is coordinating this project funded by the German Federal Ministry for Economic Affairs and Energy (BMWi). The Carl von Ossietzky University of Oldenburg (Oldenburg University) and Friedrich-Alexander-Universität Erlangen-Nuremberg (FAU) are also partners in the project. [...]
  • <p>Photo (from left to right): Dr. Javier Santisteban, scientific director of LAHN, Thomas Frederking, administrative director of HZB, Karina Pierpauli, CEO of LAHN, and Prof. Dr. Bernd Rech, scientific director of HZB. They came together to sign the agreement in Berlin.photo: Silvia Zerbe</p>
    HZB makes new contacts with Argentinian Neutron Beams Laboratory
    Helmholtz-Zentrum Berlin (HZB) has signed a cooperation agreement with the Argentinian Neutron Beams Laboratory, LAHN (Laboratorio Argentino de Haces de Neutrones). Through this cooperation, HZB will be advising Argentinian researchers on the construction of two neutron instruments. Also planned is an exchange programme for researchers from both countries. [...]
  • <p>Prof. Bernd Rech represented the HZB and its lightsource BESSY II.</p>
    LEAPS – Europe’s light sources join together to coordinate cutting-edge research
    A new strategic group comprising the organisations operating European accelerator-based light sources has been founded in Brussels. The goal of the LEAPS consortium (League of European Accelerator-Based Photon Sources) is to elevate European collaboration on these “super microscopes” to a new level for the purpose of helping solve global challenges through concerted scientific excellence, as well as boost European competitiveness and integration. Representatives from 16 institutions issued a common declaration in the presence of the European Union’s Director General for Research and Innovation, Robert-Jan Smits. [...]
  • <p>With regard to Chinese institutions, the Helmholtz Beijing Office (photo) wants to promote the Helmholtz Association and its outstanding research environment and facilities as an attractive location for the training of young scientists. Photo </p>
    HZB is involved in the Helmholtz exchange programme with China
    The Helmholtz Association and the Office of China Postdoctoral Council, OCPC, are establishing a common exchange programme for Chinese postdocs. The young scientists will be researching at eight Helmholtz centres for two years before returning to China. HZB is also involved in the exchange programme, which runs from 2017 to 2021. [...]
  • <p>At IUPAC 13th International Conference on Novel Materials and their Synthesis in October, 2017 at Nanjing Tech University, China, Prof. Norbert Koch was awarded for his research.</p>
    “Distinguished Award 2017 for Novel Materials and their Synthesis” for Norbert Koch
    At the IUPAC NMS-XIII conference in Nanjing, Professor Dr. Norbert Koch has been awarded the "Distinguished Award 2017 for Novel Materials and their Synthesis "of IUPAC (International Union of Pure and Applied Chemistry) and of the Conference Committee. Koch received the award for his research on hybrid electronic materials and their interfaces in electronic and optoelectronic components. He is Professor at the Department of Physics at Humboldt-Universität zu Berlin, member of IRIS Adlershof and head of a joint research group at the Helmholtz-Zentrum Berlin. [...]
  • News
    Approved! The EU INFINITE-CELL project
    A large EU-sponsored research project on tandem solar cells in which HZB is participating begins in November 2017. The goal is to combine thin-film semiconductors made of silicon and kesterites into especially cost-effective tandem cells having efficiencies of over 20 per cent. Several large research institutions from Europe, Morocco, the Republic of South Africa, and Belarus will be working on the project, as well as two partners from industry. [...]
  • News
    The use coordination on a EU trip: promoting European light sources
    Synchrotrons are outstanding tools for studying materials, cells and even cultural assets. Yet, many researchers in Eastern Europe are unaware that they are entitled to use them. The EU project Calipsoplus supports potential users from these countries. [...]
  • <p>Scientists at HZB are exploring the potential of metal organic perovskites for solar cells. Here a tandem solarcell is shown that combines perovskite with silicon.</p>
    Invitation to HySPRINT – Industry Day “New Frontiers in PV Research: Emerging Perovskite Semiconductors”
    On 13 October, Helmholtz-Zentrum Berlin will be hosting its first Industry Day on the topic of Perovskite Solar Cells. Following a recap of the current state of research and development and the future potential of perovskite solar cells, participants from industry will be able to give a brief presentation to show their company’s interest in the field. Intensive discussions during the Industry Day will be the starting point for future cooperation. [...]
  • <p>Sequential tomography of a lupin root (yellowish green) after deuterated water (D<sub>2</sub>O) was introduced from below. The rising water front (H<sub>2</sub>O, dark blue) is displaced by the D<sub>2</sub>O from below over the course of time. The complete sequence can be viewed as a video. Created by Christian T&ouml;tzke &copy; University of Potsdam</p>
    Science Highlight
    User research at BER II: Lupin roots observed in the act of catching water from soil – so far too quick for 3D views
    Lupins not only produce colourful blossoms but also nutritious beans rich in proteins. Just how these plants draw water approaching their roots in soil has now for the first time been observed in three dimensions by a University of Potsdam team at the HZB-BER II neutron source in Berlin. To accomplish this, they worked with the HZB imaging group to improve the temporal resolution of neutron tomography more than onehundred-fold so that a detailed 3D image was generated every ten seconds. This ultrafast neutron tomography is generally suitable as well for analyses of dynamic processes in porous materials. [...]
  • <p>Lab tour of the perovskite synthesis facility at the HZB Institute for Silicon Photovoltaics, on the occasion of the HyPerCells Research Colloquium in May 2017. </p>
    Record- efficiency solar cells realised by the HyPerCells Graduate School
    The University of Potsdam and the Helmholtz-Zentrum Berlin founded the HyPerCells Graduate School just two years ago with focus on metal halide perovskites for solar applications. Now, groups involved in the graduate school have demonstrated perovskite solar cells with record-efficiencies of over 20 percent. This confirms the graduate school is at the forefront of this research in Germany and internationally highly competitive. [...]
  • <p>Kickoff with a meeting on 19 June 2017:  Prof. Borisenko, Dr. Rienks, Prof. B&uuml;chner (all IFW), the leader of the Young Investigator Group Dr. Fedorov; Dr. Varykhalov and apl. Prof. Rader (both HZB) (from left to right). </p>
    Kickoff for Joint Lab with IFW Dresden
    The Leibniz Institute for Solid State and Materials Research Dresden (IFW) and Helmholtz-Zentrum Berlin (HZB) have created a Joint Lab for “functional quantum materials” and under its umbrella a Young Investigator Group. [...]
  • News
    EU project CALIPSOplus has started for free access to European light sources
    The EU is providing ten million euros in funding for the project CALIPSOplus, submitted by 19 European light sources. The project consortium, of which Helmholtz-Zentrum Berlin is a member, kicked off on May 2017. CALIPSOplus is aimed at promoting the international exchange of scientists and transnational access to the light sources in Europe. Other priorities are to integrate the relatively less active regions of Europe and to initiate research projects with small and mid-sized companies.  [...]
  • <p>This optical zone melting furnace is producing large single crystals. </p>
    New at Campus Wannsee: CoreLab Quantum Materials
    Helmholtz-Zentrum Berlin has expanded its series of CoreLabs for energy materials research. In addition to the five established CoreLabs, it has now set up a CoreLab for Quantum Materials. A research team from the HZB Institute for Quantum Phenomena in New Materials is responsible for the CoreLab and its modern equipment. The CoreLab is also open to experimenters from other research institutes.  [...]
  • News
    New lab for electrochemical interfaces at BESSY II
    The Helmholtz-Zentrum Berlin (HZB) is establishing a joint lab together with the Max Planck Society (MPS) to study electrochemical phenomenon at solid/liquid interfaces. The Berlin Joint Lab for Electrochemical Interfaces, or BElChem for short, will employ X-rays from BESSY II to analyse materials for renewable energy production. [...]
  • <p>The YIW2017's dynamic discussions crowd.</p>
    The Young Investigators Workshop 2017 on Dynamic Pathways in Multidimensional Landscapes
    24 scientists from various countries participated in the Young Investigators Workshop 2017 on Dynamic Pathways in Multidimensional Landscapes in Grainau am Eibsee in the Bavarian Alps. This workshop which was organized by Professor Alexander Föhlisch was dedicated to study the research topics of the Helmholtz Virtual Institute 419. It included both experimental and theoretical projects on molecular and chemical dynamics, phase transitions and switching as well as fundamental light-matter interaction. [...]
  • <p>The experimental data show, how a light pulse dissociates a hydrogen nucleus from the nitrogen atom without destroying important bonds within the molecule. </p>
    Science Highlight
    Proton transfer: Researcher find mecanism to protect biomolecules against light induced damage
    A team at the Helmholtz-Zentrum Berlin (HZB) together with researchers in Sweden and the USA has analysed a mecanism which protects biomolecules such as the DNA against damage by light. They observed how the energy of incoming photons can be absorbed by the molecule without destroying important bonds. The experiments took place at the Linac Coherent Light Source (LCLS) free-electron laser in California as well as the BESSY II synchrotron source at the HZB in Berlin, where with resonant inelastic X-ray-diffraction a very sensitive method is available. [...]
  • News
    CIGS Thin-film Solar Modules: HZB invites for workshop
    Global demand for photovoltaic systems is rising sharply. CIGS thin-film modules have become a hot topic for the solar industry. International experts will convene in Stuttgart on May 30, 2017, at the annual IW-CIGSTech workshop to discuss past and potential future technical and industrial advances in this solar technology. The Centre for Solar Energy and Hydrogen Research (ZSW) and the Helmholtz-Zentrum Berlin für Materialien und Energie (HZB) are hosting the eighth installment of this workshop, which caters to scientists, engineers and industry specialists. [...]
  • News
    Christiane Becker receives a professorship at HTW Berlin University of Applied Sciences
    Prof. Dr. Christiane Becker has accepted the call to a W2 professorship for the field of “Experimental physics focusing on material sciences and photonics” at HTW Berlin University of Applied Sciences. Since October 2012, she has headed a Young Investigator Group funded by the Federal Ministry of Education and Research, BMBF. [...]
  • News
    Deutsche Gesellschaft für Materialkunde was a guest of HZB
    From 15 to 16 March, the Deutsche Gesellschaft für Materialkunde, DGM (German association of materials science), held its closed board meeting and Advisory Council meeting at HZB. The experts took the occasion to visit the synchrotron source BESSY II and the neutron source BER II, gaining an insight into important future projects of HZB. [...]
  • <p>Agreement signed: HZB and NCBJ agreed to transfer and rebuild three of HZB&rsquo;s neutron scattering instrumentsin 2019.</p>
    Agreement signed: Three neutron instruments will be transferred to the Polish research reactor MARIA in 2019
    In February 2017 Helmholtz-Zentrum Berlin (HZB) and the National Centre for Nuclear Research (NCBJ) in Poland agreed to transfer and rebuild three of HZB’s neutron scattering instruments at the Polish research reactor MARIA in 2019. With support from the Polish Ministry of Science and Higher Education, the facility near Warsaw is currently being upgraded with latest generation technology, offering attractive research opportunities for neutron scientists from Germany and Europe. [...]
  • <p>The teams of Freie Universit&auml;t Berlin and Helmholtz Zentrum Berlin are engaged in the of training young scientists. The participants produce samples and examine at the MX beamlines of BESSY II.</p>
    HZB and Freie Universität Berlin are establishing the joint research group “Macromolecular Crystallography”
    For eight years, HZB’s “Macromolecular Crystallography” workgroup has been successfully cooperating with the “Structural Biochemistry” research group headed by Prof. Markus Wahl at the Freie Universität Berlin. They are about to intensify this cooperation. The two institutes are establishing a joint research group dedicated to studying the biochemistry of genetic information processing. This research group benefits in particular from access to the three MX beamlines, where it can study protein crystals using the synchrotron light from BESSY II. [...]
  • <p>The SPATZ team of ANSTO was glad about the arrival of the former HZB neutron instrument BioRef. It will be set up until 2018 in Australia. photo: ANSTO.</p>
    Neutron instrument BioRef arrived safely in Down Under
    As reported, the neutron instrument BioRef will be set up at the “Australian Centre for Neutron Scattering” of ANSTO. Approximately 257 components were safely packed in 43 wooden crates weighing just under 30 tonnes for the sea voyage from Hamburg to Port Botany, Australia. On 14 February the colleagues from ANSTO told us: the three shipping containers arrived safely after a two-month journey from Germany. [...]
  • <p>The 3000<sup>th</sup> ocular tumour patient was able to benefit from proton treatment on January 27<sup>th</sup>, 2017. Photo</p>
    3000th ocular tumour patient treated using protons at HZB
    A team at Charité - Universitätsmedizin Berlin and the Helmholtz-Zentrum Berlin (HZB) has now treated its 3000th ocular tumour patient with an individualised proton radiation protocol. This involves irradiating the tumour with fast hydrogen nuclei (protons) that have been accelerated to precisely set energies. These protons penetrate the healthy tissue and only release their energy in the tumour itself. [...]
  • <p>Scientists from all participating organisations together with the project officers from FCH2 JU met in January 2017 to start off the project.</p>
    Solar based hydrogen generation: EU-project PECSYS aiming for technological breakthrough
    Development of demonstrators measuring up to ten square meters in area planned [...]
  • News
    Young Investigators Workshop of the Helmholtz Virtual Institute "Dynamic Pathways in Multidimensional Landscapes"
    The Virtual Institute explores the governing principles of material’s function in an internationally highly visible centre of excellence. From now on, young scientists (PhD students, master students, and young postdocs) are invited to participate in the Young Investigators Workshop that will take place from 23rd to 28th April 2017 at the Eibsee-Hotel in the Bavarian Alps. It focuses on the research topics of the Helmholtz Virtual Institute 419 and includes both experimental and theoretical projects on molecular and chemical dynamics, phase transitions and switching as well as fundamental light-matter interaction. [...]
  • <p>The application laboratory &ldquo;SupraLab@HZB&rdquo; is funded by the EFRE Fonds.</p>
    7.4 million euros from the EFRE fund: HZB is setting up a new application laboratory for developing superconducting accelerator components
    Helmholtz-Zentrum Berlin is receiving 7.4 million euros from the European Regional Development Fund (EFRE). The money is being used to set up the application laboratory “SupraLab@HZB” for the advancement of high-current superconducting cavities. These components will be needed for operating the next generation of novel, high-performance light sources. The laboratory will also provide complex superconducting component test beds for use by companies and research institutes in the region. [...]
  • <p>BioRef was transported from HZB on December 19, 2016 and shipped to Australia. The trip will take about two months. </p>
    The BioRef neutron instrument to be set up again at ANSTO in Australia
    The BioRef neutron instrument commenced its roughly two-month journey from HZB to Australia on December 19, 2016. It will be set up again at the OPAL neutron source there, part of the Australian Nuclear Science and Technology Organisation (ANSTO) in Sydney. It is expected to be available to the international scientific community beginning in 2018 under the name "Spatz". [...]
  • <p>The new Energy Materials In-Situ Laboratory (EMIL) offers direct access to hard and soft synchrotron x-ray radiation to investigate the chemical and electronic properties of catalysts and other energy materials. <br /></p>
    Research for Germany’s energy transition: EMIL@BESSY II approved for the Kopernikus “Power-to-X” project
    The storage of excess solar and wind power is one of the greatest challenges in Germany’s energy transition. To address this, the German Federal Ministry for Education and Research (BMBF) has created the “Power-to-X” (P2X) project under its Kopernikus programme. P2X will advance research into converting electrical energy from the sun and wind into basic chemical compounds, gaseous energy media, and fuels. A total of 17 research institutions, 26 industrial enterprises, as well as three non-governmental organisations are involved, and the BMBF is funding the first development phase of the project at a level of 30 million Euros. The Helmholtz-Zentrum Berlin will participate in the planned research, using the advanced synthesis capabilities and the BESSY II synchrotron-based X-ray characterization tools at the recently inaugurated EMIL@BESSY II laboratory complex. [...]
  • <p>The funding will go towards optimising a co-evaporation process at PVcomB used for producing CIGS layers for thin-film solar cells. Photo: HZB</p>
    Speeding up CIGS solar cell manufacture
    Speeding up CIGS solar cell manufacture [...]
  • <p><span class="Beschriftung1"><span>ANSTO: Adi Paterson and Simone Richter, HZB: Prof Anke Kaysser-Pyzalla and Thomas Frederking. </span></span></p>
    HZB and ANSTO have extended their Memorandum of Understanding
    Advancing energy materials research together [...]
  • <p>Sch&uuml;lerUni: Zwei Mal im Jahren geh&ouml;ren die H&ouml;rs&auml;ale der Freien Universit&auml;t Berlin den Sch&uuml;lerinnen und Sch&uuml;lern der 5. und 6. Klasse. Foto: FU Berlin</p>
    HZB-Schülerlabor zu Gast bei der SchülerUni der Freien Universität Berlin
    Vom 26. bis 30. September 2016 öffnet die Freie Universität Berlin ihren Campus für Berliner Schulen. Unter dem Motto „Lernen für eine zukunftsfähige Welt“ bietet sie 80 verschiedene Workshops an und verwandelt Hörsäle und Seminarräume in Mitmachlabore und Kreativwerkstätten. Das HZB-Schülerlabor unterstützt die SchülerUni mit zwei Workshops zum Thema „Nachhaltigkeit und Klimaschutz“. [...]
  • <p>SEM &ndash; model of a metallic nano-network with periodic arrangement ( left) and visual representation of a fractal pattern (right). </p>
    Science Highlight
    Nanotechnology for energy materials: Electrodes like leaf veins
    Nano-sized metallic wires are attracting increasing attention as conductive elements for manufacturing transparent electrodes, which are employed in solar cells and touch screen panels. In addition to high electric conductivity, excellent optical transmittance is one of the important parameters for an electrode in photovoltaic applications. An international team headed by HZB scientist Prof. Michael Giersig has recently demonstrated for these applications that networks of metallic mesh possessing fractal-like nano-features surpass other metallic networks in utility. These findings have now been published in the most recent edition of the renowned journal Nature Communications. [...]
  • <p>The newly developed expert system was used to analyse 364 data sets of a specidfic protein crystal, soaked in different fragments.  </p>
    Science Highlight
    Advancing methodology at BESSY II: Automated evaluation speeds up the search for new active substance
    The macromolecular crystallography (MX) beamlines at the BESSY II X-ray source are specially designed to highly automated structural analyses of protein crystals. With up to now more than 2000 solved structures of protein molecules, these beamlines are by far the most productive ones in Germany and are in vigorous demand by groups from either an academic and industrial research area. Now teams from HZB and Philipps-Universität Marburg in Germany have automated the evaluation of data records as well. The newly developed expert system identifies small molecule fragments bound to proteins in the raw X-ray diffraction data. These fragments represent suitable starting points for the development of an active substance. Using a series of 364 samples, the collaborating partners demonstrated that the expert system works reliably and can speed up the search for a suitable active agents. [...]
  • <p>More than 100 experts did gather at the international conference "Dynamic Pathways in Multidimensional Landscapes", which was held in September in Berlin.</p>
    VI-Conference "Dynamic Pathways in Multidimensional Landscapes 2016"
    Near the museum island, in the heart of Berlin, the International Conference "Dynamic Pathways in Multidimensional Landscapes 2016" has taken place last week. More than 100 international experts met at the Magnus-Haus of the German Physical Society from 12 -16 September 2016. [...]
  • <p>Die Wissenschaftsetage im Bildungsforum pr&auml;sentiert zwei spannende Veranstaltungen zum Thema Nachhaltigkeit in Forschung und Kunst unter Mitwirkung von zwei HZB-Mitarbeitern. Foto: cK. Fritze</p>
    Veranstaltungshinweis: Vortrag Potsdamer Köpfe mit Daniel Abou-Ras und Vernissage der Ausstellung „Das Bild entsteht im Kopf“ von Kerstin Berthold
    Am 8. September lädt die Wissenschaftsetage im Bildungsforum Potsdam zu zwei interessanten Veranstaltungen ein. Den Auftakt macht Daniel Abous-Ras um 18 Uhr mit seinem Vortrag: „Das lässt tief blicken – Solarzellen unter dem Mikroskop“. Der Physiker zeigt dabei, wie die Entwicklung neuer Solarzellen durch verschiedene Methoden der Mikroskopie unterstützt werden kann. Diese Bilder inspirierten die Künstlerin Kerstin Berthold unter anderem zu ihren Collagen, die im Anschluss an den Vortrag in der Ausstellung „Das Bild entsteht im Kopf“ zu sehen sind. Die Vernissage findet um 19:30 Uhr statt. [...]
  • <p><span class="st">&nbsp;</span></p>
    European project for thin film Kesterite Solar cells has reached its goals
    Eleven partners from different countries have joined forces in the EU-research project KESTCELLS from September 2012 until 31. August 2016. The mission was to train a new generation of experts and to increase the efficiencies of Kesterite solar cells. Now, at the end of the project, these goals have been perfectly reached. [...]
  • <p><strong>Blick in die unterirdische Beschleunigerhalle:</strong> Sie verwandelt sich f&uuml;r drei Tage in einen Ausstellungsort f&uuml;r Kunst. Foto: HZB/S.Zerbe</p>
    Kunstausstellung im Beschleuniger-Rohbau des HZB vom 29. bis 31. Juli
    Malerei, Installation, Foto, Video, Performance: Studierende und bereits etablierte Kunstschaffende stellen in der unterirdischen Teilchenbeschleunigerhalle bERLinPro aus. Das Helmholtz-Zentrum Berlin (HZB) als Bauherr, DGI Bauwerk als Architekten und der Kurator Enno Wallis laden unter dem Titel SPEED zu einer außergewöhnlichen Kunstausstellung ein. Sie wird am Freitag, den 29. Juli um 19 Uhr eröffnet und bis zum 31. Juli zu sehen sein. Der Eintritt ist frei.
  • <p>&nbsp;Gerriet K. Sharma is setting up the icosahedral loudspeaker, photo: Kristijan Smok (izlog)</p>
    Sound artist Gerriet K. Sharma designs sound sculptures of BESSY VSR
    From 13 to 19 July 2016, the artist will be recording sounds on location [...]
  • <p>BFO has a perovskite crystal structure.</p>
    Science Highlight
    New effect on laser induced switching for higher data densities
    An international collaboration has now demonstrated a completely new approach to increase data density in storage media. They used ultra-short laser pulses to trigger a phase transition in the ferromagnetic material BaFeO3 (BFO). Experiments at the Femtospex facility at BESSY II of Helmholtz-Zentrum Berlin showed that by inducing this phase transition, magnetic domains can be easily manipulated. These magnetic domains are otherwise very stable and therefore suited for long-time data storage. The results have been published in Phys. Rev. Letters now. [...]
  • News
    Call for Applications: 20 doctoral fellowships offered by Graduate School of Analytical Sciences Adlershof
    SALSA, the Graduate School of Analytical Sciences Adlershof at Humboldt-Universität zu Berlin, is announcing 20 doctoral fellowships. The program offers a structured, three-year period of multidisciplinary research combined with an integrated curriculum in Analytical Sciences. The HZB supports SALSA by supervising some PhD students. Deadline for application is June 13th, 2016. [...]
  • <p>The three-dimensional structural network of the ultra-porous and flexible material called DUT-49 can store large amounts of methane. &copy; TU Dresden, Prof. AC1</p>
    Science Highlight
    Energy storage materials under pressure
    Surprising discovery at BESSY II: the adsorption capacity of MOFs does not rise automatically with increasing pressure [...]
  • News
    Priority programme for topological insulators begins second funding period
    Applicants for support funds to conduct research on topological insulators met at HZB Adlershof on February 15th and 16th. This meeting dealt with the second period of funding for the SPP 1666 Priority programme of the German Research Foundation (DFG) that runs from mid-2016 to 2019. Researchers from across Germany contribute their specific expertise and work together in these Priority programmes (SPPs).
  • News
    Young scientist award for Oliver Supplie
    The Deutsche Gesellschaft für Kristallzüchtung und Kristallwachstum (DGKK) presented Oliver Supplie with the DGKK Young Scientist Award on 16 March 2016. Supplie works at the TU Ilmenau and at the HZB, and accepted the prize worth 2,500 euros during the “1st German Czechoslovak Conference on Crystal Growth”. The DGKK awarded the prize in recognition of Oliver Supplie’s outstanding work in improving our understanding of interfaces between III-V semiconductors and silicon. This is of great importance for producing high efficiency components, for example. [...]
  • <p>Flexible CIGS module. Photo </p>
    Science Highlight
    The solar technologies race: thin-film photovoltaics are catching up
    ZSW and HZB present current data – with new    opportunities for Europe’s solar industry [...]
  • <p>x-ray diffraction on pure 4T, colored for chrismas reasons. </p>
    Science Highlight
    Doped organic semiconductors explored
    Organic semiconductor materials are already being employed today in solar cells and organic LEDs (OLEDs) amongst others. Until now, however, little was known about how the doping molecules are integrated into the chemical structure of organic semiconductors. The Molecular Systems Joint Research Team of the Helmholtz-Zentrum Berlin and Humboldt-Universität zu Berlin at BESSY II have now analysed this with surprising results. The molecules are not necessarily uniformly dispersed in the host lattice, as it is usual with inorganic semiconductors, but instead form what are known as co-crystallites. The doped organic semiconductor consists of a matrix of undoped crystallites in which such “mixed crystallites” are embedded. It is this very species that takes over the role as the actually doping molecule. The results were published in Nature Communications.
  • <p>MXcuBE Meeting from 1st - 2nd of December 2015 at Alba, Barcelona. The meetings make sure that the devenlopment of MXcuBE3 closly fits to the needs of the users.&nbsp;</p>
<p>Photo: <span>Jordi Juanhuix/ALBA</span></p>
    Common platform for macromolecular crystallography at European synchrotrons
    Researchers use high-intensity X-ray light from synchrotron radiation sources to decipher the structures of biological molecules and thus the blueprints of life. A cooperation agreement has been effective since 2012 to establish common software standards at several European sources. Its aim: The eight synchrotrons involved want to create user-friendly, standardised conditions at the 30 experimental stations for macromolecular crystallography, which will greatly facilitate the work of research groups. In the new project “MXCuBE3”, the existing software platform is being adapted to include the latest developments in technology. [...]
  • <p>Photo: HZB/M. Setzpfandt</p>
    ZEISS and the Helmholtz Zentrum Berlin establish partnership
    Nanotechnology in support of leading research on renewable energy [...]
  • <p>Prof. Andreas Jankowiak beim Spatenstich f&uuml;r bERLinPro</p>
    rbb-Inforadio: Andreas Jankowiak im Gespräch über bERLinPro
    Die Baustelle für bERLinPro fällt auf. Sie ist auch dem Wissenschaftsredakteur des rbb-Inforadio, Thomas Prinzler, nicht entgangen. Und so kam es zu einem kurzweiligen Gespräch, in dem Andreas Jankowiak die Herausforderungen des Projekts erläutert. Hohe Ströme, hohe Emitanzen - viel Physik. Aber auch die Anforderungen an die Gebäudeplanung kamen zur Sprache. Und die Synergie zu BESSY-VSR. Nachzuhören im Inforadio-Gespräch vom 8. November. [...]
  • News
    Uppsala Berlin Joint Laboratory “Our willingness to cooperate is our strength”
    Great political interest for the new Uppsala Berlin Joint Laboratory (UBjL): On the 4th of November, Sweden’s ambassador in Germany, Dr. Lars Danielsson, came personally to the HZB where the UBjL is established for the inauguration of the joint project. [...]
  • <p>HZB scientists develop new methods to investigate the electronic structure of catalytic molecules. </p>
    Catalysis research strengthened: Helmholtz-Zentrum Berlin participates in newly approved Einstein Center for Catalysis
    The Einstein Foundation will fund the new Einstein Center for Catalysis (EC2) beginning in 2016 in which Technical University Berlin (TU Berlin) and selected non-university institutions in Berlin will be participating. Prof. Emad Aziz, head of the HZB Institute for Methods of Materials Research at Helmholtz-Zentrum Berlin will be taking part in setting up the institution. His team will be contributing particular expertise in analytics of ultrafast processes in catalytic reactions. [...]
  • <p>Proteinkristalle an BESSY II studieren: Dank eines einmaligen Projektes k&ouml;nnen Studierende der FU Berlin regelm&auml;&szlig;ig am Snychrotron experimentieren. Das ist nur einer der sichtbaren Erfolge der Kooperation in der Berliner Strukturbiologie. Foto: Silvia Zerbe/HZB</p>
    Gemeinsames Treffen der Strukturbiologen in Berlin: der 6. Joint-MX-Day am 23. September 2015 am HZB
    Die Hauptstadt hat sich in den letzten Jahren zu einem Hotspot der Strukturbiologie in Deutschland entwickelt. Entscheidend dazu beigetragen hat das hohe Maß an Kooperation zwischen außeruniversitären Forschungseinrichtungen und Universitäten. Aber auch Wissenschaft und Industrie arbeiten in der Strukturbiologie sehr eng zusammen. Am 23. September 2015 findet der 6. Joint-MX-Day statt, bei dem sich Forscher über neue Methoden, Ansätze und Erkenntnisse in der Strukturbiologie austauschen werden. [...]
  • <p>New efficiency record: This small device is able to convert 14 percent of the incoming solar energy into hydrogen. </p>
    Science Highlight
    Hydrogen from sunlight: new efficiency record for artificial photosynthesis
    An international team has now succeeded in considerably increasing the efficiency for direct solar water splitting. They are using a tandem solar cell whose surfaces have been selectively modified. The new record value is 14 % and thus considerably above the previous record of 12.4 % held by the National Renewable Energy Laboratory (NREL) in the USA, broken now for the first time in 17 years. Researchers from the Institute for Solar Fuels at the Helmholtz-Zentrum Berlin, TU Ilmenau, the Fraunhofer Institute for Solar Energy Systems ISE in Freiburg and the California Institute of Technology (Caltech) participated in the collaboration. The results have been published in Nature Communications. [...]
  • <p>Sara J&auml;ckle has demonstrated the formation of a pn-heterojunction at the interface between an organic contact and n-doped silicon. Photo</p>
    Science Highlight
    Charge transport in hybrid silicon solar cells
    An HZB team headed by Prof. Silke Christiansen has made a surprising discovery about hybrid organic/inorganic solar cells. Contrary to expectations, a diode composed of the conductive organic PEDOT:PSS and an n-type silicon absorber material behaves more like a pn junction between two semiconductors than like a metal-semiconductor contact (Schottky diode). Their results have now been published in the Nature journal Scientific Reports and could point the way toward improvements in hybrid solar cells. [...]
  • News
    Helmholtz to invest 46 million EUR in new shared laboratory infrastructure

    Six Helmholtz Centres are founding a shared infrastructure for developing novel energy materials that will also be available to external users. [...]

  • <p>Sunlight activates the catalytic behavior of diamond materials, thus helping to convert carbon dioxide into fine chemicals and fuels. </p>
    Green solutions with diamond materials:
    Horizon 2020 invests 3.9 million Euro in research project to convert CO2 into fuels using sunlight and diamond materials [...]
  • <p>Hexagonal single crystal of SrCo<sub>6</sub>O<sub>11</sub>, with a sample diameter of approximately 0,2 millimetres.</p>
    Science Highlight
    Emergence of a “devil’s staircase” in a spin-valve system
    A Japanese-German team observes at BESSY II how spins form unusual magnetic structures in a complex cobalt oxide single crystal. Such a material offers new perspectives for spintronic applications. [...]
  • News
    Joint Lab BeJEL receives 1.4 million EUR grant
    The Berlin Joint EPR Laboratory (BeJEL) operated by HZB and Freie Universität Berlin has pulled in six of 27 subprojects within a DFG priority program to address“New Frontiers in Sensitivity for EPR Spectroscopy – from Biological Cells to Nano Materials”. [...]
  • <p>ANSTO is delivering scientific services and products to government, industry, academia and other research organisations.&nbsp;</p>
    HZB and ANSTO signed MoU
    In May HZB and the  Australian Nuclear Science and Technology Organisation (ANSTO) have signed a high-level scientific cooperation agreement. The objective is to establish a framework and terms of cooperation in the field of neutron scattering science, and define the mechanisms for collaboration on the basis of mutual benefit, equality and reciprocity. [...]
  • <p>Sketch of  the &ldquo;MHz-pulse selector&rdquo; which moves frictionless in a vacuum at triple sound velocity perpendicular to the beam. </p>
    Wheel with triple sound velocity for pulse selection at BESSY II
    In order to pick out only one pulse per turn out of the 400 possible x-ray flashes at BESSY II, a joint team of physicists and engineers from Forschungszentrum Jülich, MPI of Microstructure Physics and HZB have developed an extremely fast rotating “MHz-pulse selector”, which is now at the core of the Uppsala Berlin joint Lab to extract the hybrid bunch within the 200 nanosecond ion clearing gap of BESSY II. The device consists of a wheel made of a special Aluminum alloy which has tiny slits of 70 micrometer width at its outer rim. They move frictionless in a vacuum at triple sound velocity perpendicular to the beam. Users can now decide to operate their experiment in a single bunch mode even during normal multibunch operation of BESSY II. [...]
  • <p>Ultra-high vacuum system in the Energy Materials In-Situ Lab (EMIL) that will combine industry-relevant deposition tools with a suite of complementary advanced characterization methods. </p>
    EU funding strengthens solar cell research at HZB
    Marcus Bär and his team are participating in two international projects being funded under the EU Horizon 2020 research programme. Both research projects are concerned with development and optimisation of high-efficiency thin-film solar cells based on chalcopyrites (“Sharc 25") and kesterites (“SWInG”). These two projects will together bring in about 900,000 EUR of additional research funding for solar cell research. [...]
  • <p>Anke Kaysser-Pyzalla, Thomas Frederking, Gerhard Sagerer und Stephan Becker (v. l.) unterzeichnen den Kooperationsvertrag.Foto: Universit&auml;t Bielefeld</p>
    Universität Bielefeld und HZB kooperieren zu Nanoschichten und komplexen Materialien
    Im Februar 2015 haben Uni-Rektor Professor Dr.-Ing. Gerhard Sagerer, Uni-Kanzler Dr. Stephan Becker und die Geschäftsführer des HZB, Professorin Dr.-Ing. Anke Kaysser-Pyzalla und Thomas Frederking eine Vereinbarung über die Zusammenarbeit unterschrieben. Darin heißt es: „Die Kooperation soll zur Steigerung der wissenschaftlichen Exzellenz der Partner und zur Entwicklung regionaler Kompetenznetzwerke in Forschung, Lehre und Ausbildung des wissenschaftlichen Nachwuchses beitragen.“ [...]
  • <p></p>
<p>The scanning electron microscopies (SEM) show how regularly the funnels etched in a silicon substrate are arranged (left: the line segment = 5 microns; right: 1 micron). The funnels measure about 800 nanometres in diameter above and run down to about a hundred nanometres at the tip. </p>
    Science Highlight
    Learning by eye: silicon micro-funnels increase the efficiency of solar cells
    A biological structure in mammalian eyes has inspired a team headed by Silke Christiansen to design an inorganic counterpart for use in solar cells. With the help of conventional semiconductor processes, they etched micron-sized vertical funnels shoulder-to-shoulder in a silicon substrate. Using mathematical models and experiments, they tested how these kind of funnel arrays collect incident light and conduct it to the active layer of a silicon solar cell. Their result: this arrangement of funnels increases photo absorption by about 65% in a thin-film solar cell fitted with such an array and is reflected in considerably increased solar cell efficiency, among other improved parameters. [...]
  • <p>Dichromium: both chromium atoms "share" the  12 valence electrons which leads to a multible bond. </p>
    Science Highlight
    Stretch and relax! – Losing one electron switches magnetism on in dichromium
    An international team of scientists from Berlin, Freiburg and Fukuoka has provided the first direct experimental insight into the secret quantum life of dichromium. Whereas in its normal state the 12 valence electrons form a strong multiple bond between the two chromium atoms, removing only one electron changes the situation dramatically: 10 electrons localize and align their spins, thus resulting in ferromagnetic behavior of the dichromium-kation. The bonding is done by one electron only, resulting in a much weaker bond. The scientists used the unique Nanocluster Trap experimental station at the BESSY II synchrotron radiation source at Helmholtz-Zentrum Berlin and published their results in the Journal Angewandte Chemie. [...]
  • <p>Schon auf der Er&ouml;ffnungsveranstaltung war das HZB gut vertreten. Viele Arbeitsgruppen freuen sich nun auf die enge Zusammenarbeit im neuen Joint Lab mit den Kolleginnen und Kollegen aus der Theorie und der Simulation. Foto: Andreas Kubatzki/HZB</p>
    BerOSE - Joint Lab für Modellierung von Nanooptischen Strukturen
    HZB gründet mit FU Berlin und Zuse Institut Berlin das „Berlin Joint Lab for Optical Simulations for Energy Research (BerOSE)“ [...]
  • <p>This illustrates a moment captured for the first time in experiments at SLAC National Accelerator Laboratory. The CO-molecule and oxygen-atoms are attached to the surface of a ruthenium catalyst. When hit with an optical laser pulse, the reactants vibrate and bump into each other and the carbon atom forms a transitional bond with the lone oxygen center. The resulting CO<sub>2</sub> detaches and floats away. </p>
    Science Highlight
    Details of a crucial reaction: Physicists uncover oxidation process of carbon monoxide on a ruthenium surface
    An international team has observed the elusive intermediates that form when carbon monoxide is oxidized on a hot ruthenium metal surface. They used ultrafast X-ray and optical laser pulses at the SLAC National Accelerator Laboratory, Menlo Park, California. The reaction between carbon monoxide and adsorbed oxygen atoms was initiated by heating the ruthenium surface with optical laser pulses. Directly afterwards, changes in the electronic structure of oxygen atoms were probed via X-ray absorption spectroscopy as they formed bonds with the carbon atoms.The observed transition states are consistent with density functional theory and quantum oscillator models. [...]
  • <p>Artificial catalysts imitate natural photo-synthesis.<br />Image </p>
    Science Highlight
    The path to artificial photosynthesis
    HZB researchers describe efficient manganese catalyst capable of converting light to chemical energy [...]
  • <p>A general view of the VEKMAG end-station. The vector magnet chamber (grey) is supported by a hexapod frame. Below the magnet  one can distinguish the detector chamber (green) and  in the forward direction the deposition chamber (dark grey) is displayed. The beam quality is monitored by a diagnostic chamber (yellow) positioned in front of the magnet chamber. </p>
    “VEKMAG” at BESSY II creates 3D magnetic fields in samples
    Together with HZB, teams from the Universität Regensburg, from the Freie Universität Berlin and from  the  Ruhr Universität Bochum have jointly set up a unique measurement station at BESSY II: a vector electromagnet consisting of three mutually perpendicular Helmholtz coils which enables  setting the local magnetic field at the sample position  to any orientation desired. The first measurements of magnetic materials, spin systems, and nanostructured magnetic samples are scheduled for early 2015. [...]
  • <p>The a-Si:H is deposited on a AZO-film that acts as a transparent front contact. A ITO-layer serves as rear contact. The organic sub-cell possesses a front contact made of a conductive polymer material (PEDOT) and a metallic rear contact.</p>
    Science Highlight
    Maximum efficiency, minimum materials and complexity
    Silicon-based thin-film solar cell with a supplementary organic layer can utilise infrared light as well [...]
  • <p>Prof. Dr. Oguz Okay lehrt Physikalische Chemie an der Istanbul Technical University und gilt als einer der besten Polymerforscher der T&uuml;rkei. Nun kommt er als Gast ans HZB.</p>
    Georg-Forster-Forschungspreis an Oguz Okay
    Die Alexander von Humboldt-Stiftung hat gestern acht mit jeweils 60.000 Euro dotierten Georg Forster-Forschungspreise vergeben. Unter den Preisträgern ist  Prof. Dr. Oguz Okay (59), Istanbul Technical University, der nun für einen Gastaufenthalt an das HZB-Institut für Weiche Materie und Funktionale Materialien nach Berlin kommt. [...]
  • <p>The new organic material is able to &ldquo;add up&rdquo; low-energy photons (red) to yield higher-energy light (blue), which can then be harvested by the solar cell. </p>
    Science Highlight
    Organic layer adds light particles
    Solar cells can only use photons with energies above a specific threshold to generate electricity. A German-Australian research collaboration has now combined solar cells with an organic material which can “add up” low-energy photons to yield higher-energy light, which can then be harvested by the solar cell. In an invited review paper published in the prestigious journal Energy & Environmental Science the scientists give an overview on the fascinating phenomenon of photonic upconversion and report new results: The organic layers show less photo-degradation than suspected and may also be used for other optoelectronics applications. [...]
  • <p>Logo der Jahrestagung FVEE 2014</p>
    Jahrestagung des ForschungsVerbund Erneuerbare Energien
    Unter dem Motto „Forschung für die Energiewende – Phasenübergänge aktiv gestalten“ fand am 7. und 8. November die Jahrestagung des ForschungsVerbund Erneuerbare Energien (FVEE) im Umweltforum Berlin statt. Vertreter aus Wissenschaft und Politik referierten über den proaktiven Umgang mit den technologischen, ökonomischen sowie politisch-gesellschaftlichen Herausforderungen der Energiewende. [...]
  • <p>Das HZB beteiligt sich am Aufbau zweier Studieng&auml;nge an derT&uuml;rkisch-Deutschen Universit&auml;t in Istanbul. <a href="http://www.tau.edu.tr" class="Extern">www.tau.edu.tr</a></p>
    Deutsch-Türkische Universität am HZB zu Gast
    Vizerektor und Dekan der Naturwissenschaftlichen Fakultät besuchte mehrere Institute des HZB [...]
  • Science Highlight
    German Society for Materials Science awards publication with HZB scientist as co-author

    At its annual conference on September 22, 2014, the German Society for Materials Science (DGM), presented the Werner Köster Award for best publication. The work, whose authors include HZB scientist Dr. Michael Tovar and which has been published in the International Journal of Materials Research, examines the catalytic effect of vanadium pentoxide in propene synthesis from propane using spectroscopic, microscopic, and radiographic methods. [...]

  • <p>Cryogenic TEM micrograph of gold nanoparticles (Au-NP) in DES-solvent. Sputtering duration 300 s. Red circles show the different domains of self-assembled Au-NPs. The inset shows an enlarged image of one particular domain of self-assembled Au-NPs.<br /></p>
    Science Highlight
    Self-assembly of gold nanoparticles into small clusters
    Researchers at HZB in co-operation with Humboldt-Universität zu Berlin (HU, Berlin) have made an astonishing observation: they were investigating the formation of gold nanoparticles in a solvent and observed that the nanoparticles had not distributed themselves uniformly, but instead were self-assembled into small clusters. [...]
  • <p>Ammonium tungstate/PSS film surface:  (a) SEM picture before pyrolysis; (b &amp; c) SEM picture after pyrolysis. </p>
    Science Highlight
    Collecting light with artificial moth eyes
    Scientists at EMPA in Zürich and University of Basel have developed a photoelectrochemical cell, recreating a moth’s eye to drastically increase its light collecting efficiency. The cell is made of cheap raw materials – iron and tungsten oxide. Analyses at BESSY II have revealed which chemical processes are useful to facilitate the absorption of light. [...]
  • <p>SEM image of the membrane. </p>
    Science Highlight
    “Muscled skin”: Simple formulas describe complex behaviors
    HZB researchers help chemists understand polymeric "biomimetic" materials' mechanical properties [...]
  • <p>When inserting an ultrathin dielectric between metal electrode and organic semiconductor, charge carriers (shown here for a positively charged holes in red) are, counter intuitively, more efficiently extracted from their transport level (blue) in the organic to the Fermi level (black) in the metal than without the interlayer.</p>
    Science Highlight
    Electrostatics do the trick
    A simple model describes what happens between organic semiconductors and metals [...]
  • <p>R&ouml;ntgenbild eines fl&uuml;ssigen Metallschaums in Schwerelosigkeit</p>
    In Schwerelosigkeit Metalle geschäumt
    Erfolgreich haben drei Forscher des Berliner Hahn-Meitner-Instituts (HMI) in Schwerelosigkeit untersucht, wie die Erdanziehung die Eigenschaften eines Metallschaums beeinflusst. Sie haben ihre Experimente in einem umgebauten Airbus 300 durchgeführt. Das Flugzeug fliegt auf einer Art Buckelbahn. Dabei steigt es immer wieder zunächst steil auf, um danach im freien Fall entlang einer Wurfparabel zu fliegen. Während eines solchen Fluges herrscht immer wieder kurzzeitig fast doppelte Erdanziehung, die von einer 20 Sekunden dauernden Phase der Schwerelosigkeit abgelöst wird. [...]
  • Nachricht
    Qumran-Rollen vom Toten Meer an BESSY II untersucht

    Antike Schriftstücke vor dem Verfall zu bewahren oder sie zu restaurieren ist eine Kunst für sich. Um sie auszuüben, ist es von enormer Bedeutung herauszufinden, wie beispielsweise Pergament durch bestimmte Tinten über die Jahrhunderte zerstört wird; und wie dies zu vermeiden wäre. Für solche Untersuchungen ist Röntgenstrahlung ein hervorragendes Werkzeug. Um diese Forschungsarbeiten zu unterstützen, hat BESSY nun einen Röntgenmessplatz so ausgestattet, dass auch sehr empfindliche Objekte, wie antike Pergamentrollen oder Gemälde auf Leinwand oder Holz untersucht werden können, ohne dabei Schaden zu nehmen. [...]

  • Nachricht
    Grünes Licht für die Fusion von HMI und BESSY

    Hahn-Meitner-Insitut und BESSY begrüßen die Entscheidung von BMBF und Berliner Senat [...]

  • <p>Modell des Hochfeldmagneten im Ma&szlig;stab 1:5</p>
    Der weltweit stärkste Magnet für Neutronenexperimente wird in Berlin errichtet
    Der Kooperationsvertrag zwischen dem Hahn-Meitner-Institut Berlin (HMI) und dem National High Magnetic Field Laboratory (NHMFL) Tallahassee (Florida State University) zum Bau eines neuen Hochfeldmagneten ist unterzeichnet worden. Er wird der weltweit stärkste Magnet für Neutronenstreuexperimente. Von den Experimenten an dem Magneten erwarten Forscher neue Erkenntnisse zu Fragen aus der Physik, Chemie, Biologie und den Materialwissenschaften, unter anderem Beiträge zum Verständnis der Hochtemperatursupraleitung. [...]
  • Nachricht
    Kompetenzzentrum Dünnschicht- und Nanotechnologie für Photovoltaik wird in Berlin aufgebaut

    Das Hahn-Meitner-Institut (HMI), die Technische Universität Berlin (TUB) sowie acht führende Industrie-Unternehmen unterzeichnen ein Memorandum of Understanding (MoU) zur Gründung des Kompetenzzentrum Dünnschicht- und Nanotechnologie für Photovoltaik. [...]

  • Nachricht
    EU-Projekt ATHLET will Dünnschichtsolarzellen an den Markt bringen

    Die Kostensenkung von Solarzellen ist die zentrale Herausforderung der modernen Photovoltaik. In Berlin startet am 20. Februar das europaweit größte Forschungsprojekt, das sich dieser Herausforderung stellt. Universitäten, Forschungseinrichtungen und Unternehmen aus 11 Ländern arbeiten zusammen, um den Übergang der zweiten Generation von Solarzellen, so genannten Dünnschichtzellen, aus den Laboren in den Markt zu beschleunigen. [...]

  • Nachricht
    HMI und BESSY feiern Fertigstellung von zwei Neubauten in Berlin-Adlershof

    Das Hahn-Meitner-Institut (HMI) und die Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung (BESSY) feiern am 4. Oktober um 14 Uhr mit einer Festveranstaltung die Einweihung von zwei Anbauten am Hauptgebäude neben dem Elektronenspeicherring von BESSY. Die Neubauten werden auf 2575 Quadratmetern Nutzfläche einen Hörsaal sowie Bibliotheks-, Labor- und Büroräume für beide Forschungseinrichtungen aufnehmen. [...]

  • Nachricht
    Zwei berühmte Gemälde mit Neutronen untersucht: "St. Sebasian" von George de La Tour und "Girl with a Platter of Fruits" von Tiziano Vecellio

    In Kooperation mit der Gemäldegalerie Berlin und der Stiftung Preußischer Schlösser und Gärten Berlin-Brandenburg sind am Forschungsreaktor BER II zwei Gemälde untersucht worden. Seit vielen Jahren wird ein spezielles Neutroneninstrument zur zerstörungsfreien Analyse von Gemälden mittels Neutronenautoradiographie genutzt. [...]