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- World record: Fastest 3D tomographic images at BESSY II
An HZB team has developed an ingenious precision rotary table at the EDDI beamline at BESSY II and combined it with particularly fast optics. This enabled them to document the formation of pores in... - 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 ... - Kesterite solar cells: better opto-electronic properties
Specific changes in the composition of kesterite-type semiconductors make it possible to improve their suitability as absorber layers in solar cells. As a team at the Helmholtz-Zentrum Berlin showe... - 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 extremel... - New insights into high-temperature superconductors
After 30 years of research, there are still many unsolved puzzles about high-temperature superconductors - among them is the magnetic "stripe order" found in some cuprate superconductors. A Danish ...
- Neutron spectroscopy: new detector module increases count rate tenfold
The triple axis spectrometer FLEXX at BER II provides a new detector module for user service. It measures many angles and multiple energy transfers simultaneously and thus increases the amount of d... - New model for bimolecular reactions in nanoreactors
Theoretical physicists have devised a mathematical model of two different molecules reacting within so called nanoreactors that act as catalysts. They gained surprising new insights as to what fact... - 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 El... - Better cathode materials for Lithium-Sulphur-Batteries
A team at the Helmholtz-Zentrum Berlin (HZB) has for the first time fabricated a nanomaterial made from nanoparticles of a titanium oxide compound (Ti4O7) that is characterised by an extremely larg... - Nanodiamonds as energy materials: tuning the functionalities
An international team has shed light onto interactions between nanodiamonds and water molecules. Experiments at synchrotron sources showed how hydrogenated groups on nanodiamond surfaces change the...
- Ionic liquids simplify laser experiments on liquid samples
A HZB team has developed a new approach to conduct photoemission spectroscopy of molecules in solution. This has been difficult up to now because the sample needed to be situated in vacuum - but li... - 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... - Lithium-ion batteries: Capacity might be increased by six times
The capacity of lithium-ion batteries might be increased by six times by using anodes made of silicon instead of graphite. A team from the Helmholtz-Zentrum Berlin (HZB) Institute of Soft Matter an... - Mass spectrometry imaging of metabolites from formalin-fixed paraffin-embedded tissue
Scientists at the Helmholtz Zentrum München have developed a new mass spectrometry imaging method which, for the first time, makes it possible to analyze hundreds of metabolites in fixed tissue sam... - High pressure reduces adsorption capacity of metal-organic frameworks
Metal-organic frameworks (MOFs) can store gases such as methane in their surface interstices, or pores. Now teams from the Technische Universität Dresden and Helmholtz-Zentrum Berlin (HZB) have pre... - Fingerprint of hydrogen bonding captured in experiments
A team from Helmholtz-Zentrum Berlin has been able for the first time to measure how new bonds influence molecules: they have reconstructed the "energy landscape" of acetone molecules using measure... - Metal Oxide Sandwiches: New option to manipulate properties of interfaces
A Franco-German cooperation has investigated a sandwich system of transition metal oxides at BESSY II. The scientists discovered a new option to control properties of the interface between the two ... - Alternative method for the representation of microstructures in polycrystalline materials
Also Raman microspectroscopy in an optical microscope provides the means to determine local crystal orientations of polycrystalline materials over large sample areas. This method can be used altern...
- Filming microscopic and macroscopic changes within materials
The EDDI beamline at BESSY II is now offering even more options. It has recently become possible to also obtain high-resolution three-dimensional images of microscopic structure with it, up to four... - Charge transport in polymeric carbon nitride detailed for first time
Polymeric carbon nitride is an organic material with interesting optoelectronic properties. As an inexpensive photocatalyst, it can be used to facilitate water splitting using sunlight. Joint resea... - Monolithic perovskite/silicon tandem solar cell achieves record efficiency
Teams from the Helmholtz-Zentrum Berlin and École Polytechnique Fédérale de Lausanne, Switzerland, have been the first to successfully combine a silicon heterojunction solar cell with a perovskite ... - How to improve ultrathin CIGSe solar cells by nanoparticles
CIGSe solar cells are made of a thin chalcopyrite layer consisting of Copper, Indium, Gallium and Selenium and can reach high efficiencies. Since Indium is becoming scarce and expensive, it is int... - 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.... - Relationship between Crystal structure and magnetism decoded
A team at HZB has carried out the first detailed study of how magnetic and geometric ordering mutually influence one another in crystalline samples of spinel. To achieve this, the group synthesised... - Depletion and enrichment of chlorine in perovskites observed
X-ray spectroscopy at BESSY II reveals inhomogenous distribution of chlorine in a special class of perovskite materials. The discovery could help to enhance efficiencies of perovskite thin film sol...