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Order in the disorder: density fluctuations in amorphous silicon discovered Such a-Si:H thin films have been used for decades in solar cells, TFT displays, and detectors. The results show that three different phases form within the amorphous matrix, which influences the quality and lifetime of the semiconductor layer.
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.
Hope for better batteries – researchers follow the charging and discharging of... The use of silicon in batteries promises to increase their capacity. At the HZB, charging and discharging was observed live for the first time and insights were gained into how the material can be used even more advantageously.
Robust high-performance data storage through magnetic anisotropy An international team led by Prof. Dr. Matias Bargheer 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.
Optimize opto-electronic devices with new compact measuring system In order to develop efficient opto-electronic devices such as solar cells or LEDs, it is crucial to improve the quality of the semiconductors. To achieve this, it is necessary to determine the luminescence yield of the semiconductor material. For this ...
BESSY II: Experiment shows for the first time in detail how electrolytes become... For the first time an experiment was developed at BESSY II that shows how electrolytes become metallic. The transition to the state is shown by a change of colour from blue to gold. The publication even appears on the front page of SCIENCE Magazine.
User research at BESSY II: How new materials increase the efficiency of direct... A group from Brazil and an HZB team have investigated a novel composite membrane for ethanol fuel cells. It consists of the polymer Nafion, in which nanoparticles of a titanium compound are embedded by the rarely explored melt extrusion process.