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- 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...
- Artificial catalysts imitate natural photo-synthesis
Scientists at the Helmholtz Center for Materials and Energy (HZB) in collaboration with the School of Chemistry and ARC Centre of Excellence for Electromaterials Science at Monash University, Austr... - Holes in valence bands of nanodiamonds discovered
Researchers hope that their properties might be altered to permit nanodiamonds to be used as catalysts for generating hydrogen from sunlight. Nanodiamonds are tiny crystals only a few nanometres... - 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 ... - Bonding behaviour of iron pentacarbonyl experimentally decoded
Following six years' work, an international team comprising eleven research institutions has been successful in observing precisely how light affects the outer electrons of a metallic compound and ... - Efficient photocathode for generating hydrogen using sunlight
A team at the HZB Institute for Solar Fuels has developed a new composite photocathode for generating hydrogen with high quantum efficiency using sunlight. This enables solar energy to be stored ch... - Towards graphene biosensors
For the first time, a team of scientists has succeeded in precisely measuring and controlling the thickness of an organic compound that has been bound to a graphene layer. This might enable graphen... - Research project to convert CO2 into fuels using sunlight and diamond materials
A great new idea is now being investigated by scientists of Germany, France, England, and Sweden, among them HZB's Prof. Emad Aziz. They propose exploring diamond materials for photocatalytic conve... - 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... - 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... - 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.... - 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... - 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 ... - 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... - 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...
- Analysis of the efficiency of solar cells by time-resolved spectroscopy
Perovskite based solar cells are a hot topic in energy research and Science Magazine has put it on the list of Breakthroughs in 2013. In only a few years their efficiency has increased from 3 % to ... - How to use light to manipulate the spin in topological insulators
Researchers at HZB investigated the topological insulator bismuth selenide (Bi2Se3) by spin-resolved photoelectron spectroscopy at BESSY II. They found an astonishing difference depending on whethe... - Aging of Li-ion batteries explained by using X-ray absorption spectroscopy
Even the best Li-ion batteries degrade with time. A reason for this was now identified by researchers at HZB. They could directly observe at BESSY II and DORIS atomic rearrangements occurring in th... - Even thinner solar cells through use of nanoparticles
Nanostructures could enable more light to be directed into the active layer of solar cells, increasing their efficiency. Prof. Martina Schmid (HZB und Freie Univ. Berlin) has now measured how irreg... - New tool for Joint Lab to investigate the chemistry of nature
The Aziz' team at the Joint Laboratory between Freie Universität Berlin and HZB has built a laser-based tabletop setup which generates ultrashort XUV light pulses and achieves their monochromatizat... - X-ray pulses on demand from Electron Storage Rings
HZB physicists recently devised a new method to pick single x-ray pulses out of the pulse trains usually emitted from synchrotron radiation facilities. The technique is very useful to support studi... - Three-dimensional volume diffraction optics for X-rays developed
Physicists at HZB have developed a process to generate improved lenses for X-ray microscopy that provide both better resolution and higher throughput. To accomplish this, they fabricate three-dimen... - New kind of spectrometer for the analyses of sample surfaces
HZB's own Prof. Dr. Gregor Schiwietz and his team have developed a new kind of spectrometer capable of particularly sensitive analyses of sample surfaces. It has allowed them to be the first to obt... - New class of protein crystals discovered
Scientists at the Helmholtz Center Berlin (HZB) along with researchers at China's Fudan University have characterized a new class of materials called protein crystalline frameworks (PCFs). Thank... - Lighter elements precisely detected using scanning electron microscopy
Reflection zone plates produced by HZB enable lighter elements in material samples to be efficiently and precisely detected using scanning electron microscopy (SEM) by providing high resolution in ...