LEAPS – Europe’s light sources join together to coordinate cutting-edge research
Prof. Bernd Rech represented the HZB and its lightsource BESSY II.
Directors of European lightsources. Credit. Diamond Light Source
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.
“Light from particle accelerators plays a decisive role for studies in nearly every field of the natural sciences today – from physics, chemistry, and biology to energy, medicine, and transportation through to cultural history”, remarks Prof. Helmut Dosch, Director of the Helmholtz DESY centre and Chair of the consortium. “Until now, the light sources situated in the various countries have been largely developed and operated independently from one another. Yet they have an enormous amount in common, because they are extremely similar in their scientific objectives.”
Prof. Bernd Rech, acting head of the Helmholtz-Zentrum in Berlin (HZB) explains: “At HZB we operate BESSY II, a synchrotron light source that specialises in producing soft X-rays for scientific research. We intentionally complement other synchrotron sources in Germany and Europe, the majority of which generate hard X-ray emissions.”
Processes involving delicate chemical bonding and those taking place at surfaces and boundary layers in thin-film materials are often disrupted by higher energies, but can be successfully studied using soft X-rays. Minute magnetic features within thin layers can be delineated as well. The research priorities at BESSY II revolve about energy materials and involve a wide range of potential applications – from next-generation solar cells, to catalytic systems, through to magnetic materials for employment in new energy-efficient information technologies.
“The HZB is completely committed to the LEAPS objectives. By working together, including on developing advanced accelerator-based light sources, we will be able to create here in Europe the most productive research environment possible for using light as a probe”, says Rech. In addition, the future projects coming up at HZB for the advanced development of BESSY II, i.e. BESSY-VSR and bERLinPro, are being coordinated within the European research landscape.
The new form of cooperation between the participating institutions is intended to ensure that the large European research infrastructures are used even more efficiently in the future and that large scientific and technological challenges can be addressed jointly.
16 institutions from 10 European countries have joined together in LEAPS to serve a community of more than 24,000 researchers working on a broad spectrum of research topics. Industrial research conducted at accelerator-based light sources will benefit from LEAPS as well, not just the fields of pure and applied research.
- Bright prospects for tin perovskite solar cellsPerovskite solar cells are widely regarded as the next generation photovoltaic technology. However, they are not yet stable enough in the long term for widespread commercial use. One reason for this is migrating ions, which cause degradation of the semiconducting material over time. A team from HZB and the University of Potsdam has now investigated the ion density in four different, widely used perovskite compounds and discovered significant differences. Tin perovskite semiconductors produced with an alternative solvent had a particular low ion density — only one tenth that of lead perovskite semiconductors. This suggests that tin-based perovskites could be used to make solar cells that are not only really environmentally friendly but also very stable.
- Synchrotron radiation sources: toolboxes for quantum technologiesSynchrotron radiation sources generate highly brilliant light pulses, ranging from infrared to hard X-rays, which can be used to gain deep insights into complex materials. An international team has now published an overview on synchrotron methods for the further development of quantum materials and technologies in the journal Advanced Functional Materials: Using concrete examples, they show how these unique tools can help to unlock the potential of quantum technologies such as quantum computing, overcome production barriers and pave the way for future breakthroughs.
- How carbonates influence CO2-to-fuel conversionResearchers from the Helmholtz Zentrum Berlin (HZB) and the Fritz Haber Institute of the Max Planck Society (FHI) have uncovered how carbonate molecules affect the conversion of CO2 into valuable fuels on gold electrocatalysts. Their findings reveal key molecular mechanisms in CO2 electrocatalysis and hydrogen evolution, pointing to new strategies for improving energy efficiency and reaction selectivity.