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A conductive AFM tip is used to scan the sample surface of an a-Si:H/c-Si interface under ultra-high vacuum on the nm scale, revealing the transport channels of the charge carriers via defects in the a-Si:H (red states in the magnified section).
SCIENCE HIGHLIGHT
Solar cells: Losses made visible on the nanoscale Now, for the first time, a team at Helmholtz-Zentrum Berlin (HZB) and the University of Utah, USA, has experimentally shown how such contact layers generate loss currents on the nanometre scale and what their physical origin is.
NACHRICHT
21.01.: Seminar zu klimaneutralem Planen, Bauen und Betreiben Photovoltaik im Gebäudekonzept integrieren | DGNB Seminarreihe Klimaneutrales Planen, Bauen und Betreiben 21.Januar 14:30 - 16:00 Uhr
Image of a silicon perovskite tandem solar cell
SCIENCE HIGHLIGHT
Silicon-perovskite tandem solar cells: New facilities pave the way for... Two new and innovative production lines for silicon perovskite tandem solar cells
Daniel Abou-Ras and his team identify the microscopic structure of a very good CIGS thin-film solar cell (top). It serves as a model for a computer simulation (below).
SCIENCE HIGHLIGHT
Research team provides concrete approach to improve the performance of CIGS... What causes losses in thin-film solar cells? For the first time, a team of researchers has been able to confirm an assumption - and provide information on how CIGS thin-film solar cells can be optimized.
Integrated PV-EC device during performance tests in the outdoor test bed for realistic operating condition.
NEWS
Best electrolyser/photovoltaics combinations demonstrated in test fields One of the most promising ways to increase the availability of solar energy is to convert excess production into hydrogen. The PECSYS project has investigated the best possible material and technology combinations to facilitate such an operation.
Grosspeter Tower, Basel 2016
NACHRICHT
Seminar für Architekt*innen Bauwerkintegrierte Photovoltaik: Architektur –... Im September veranstaltet die Beratungsstelle für BIPV „BAIP“ zusammen mit der Architektenkammer Niedersachsen ein Seminar für Architekt*innen zum Thema Bauwerkintegrierte Photovoltaik: Architektur-Gestaltung und Ausführung
At the Helmholtz Innovation Lab HySPRINT, Steve Albrecht finds the appropriate techniques to produce the world's most efficient perovskite solar cells.
PORTRAIT
Portrait: The athlete in the lab coat Steve Albrecht is researching on perovskite solar cells and holds several efficiency world records with his team. Back in his schooldays, he was going to become either a competitive gymnast or a scientist. And he chose science.
The tandem solar cell was realized on a typical laboratory scale of one square centimeter. However, scaling up is possible.
SCIENCE HIGHLIGHT
World Record: Efficiency of perovskite silicon tandem solar cell jumps to 29.15... In the race for ever higher efficiency levels, an HZB development team is once again ahead. The scientists have developed a tandem solar cell made of perovskite and silicon, which converts 29.15 per cent of the incident light into electrical energy.
The graph visualizes the average temperature for Germany between 1881 and 2017; each strip stands for one year, based on the data set of the DWD.
NEWS
Invitation: Climate change - from knowledge to action Public debate on climate change with Fridays for Future and Scientists for Future, HZB and PIK. Thursday, 5.12.2019, 17:00 at Bunsen-Auditorium in Adlershof
The Aktiv-Stadthaus in Frankfurt am Main achieves the efficiency house Plus Standard despite difficult conditions.
NEWS
Reaching climate targets with building integrated Photovoltaics There is now a wide range of façade elements that generate photovoltaic electricity. So far, however, such building-integrated PV modules have rarely been installed. The Advisory Centre for Building Integrated PV (BAIP) wants to change this.
The Pero-CIGS tandem cell achieves a record efficiency of 23.26 percent.
SCIENCE HIGHLIGHT
World record for tandem perovskite-CIGS solar cell A team headed by Prof. Steve Albrecht from the HZB will present a new world-record tandem solar at EU PVSEC in Marseille, France on September 11, 2019.
NEWS
Photovoltaics are growing faster than expected in the global energy system 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.
New solutions are available to integrate PV into the building skin. One beautiful example is the Copenhagen International School.
NEWS
Towards the Climate Neutral City: Independent consulting office for integrating... Towards the Climate Neutral City: Independent consulting office for integrating photovoltaics into buildings
Perovskite-based tandem solar cells can achieve now efficiencies better than 25%.
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 ...
Semi transparent PV-elements in the train station in Perpignan, France.
NEWS
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.
Oxford PV – 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.
NEWS
Oxford PV collaborates with HZB to move perovskite solar cells closer to... 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.
The energy yields of CIGS modules under real world conditions can be measured on a outdoor testing platform at PVcomB.
NEWS
PVcomB and AVANCIS launch joint MyCIGS research project in order to improve... 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 ...
Scientists from all participating organisations together with the project officers from FCH2 JU met in January 2017 to start off the project.
NEWS
Solar based hydrogen generation: EU-project PECSYS aiming for technological... Development of demonstrators measuring up to ten square meters in area planned