Bernd Rech boardmember of the "work group of energy"
Bernd Rech will focus on renewable energy issues.
Prof. Bernd Rech will speak on recent findings in thin film silicon photovoltaik research at the autumn meeting of the energy work group of the Deutsche Physikalische Gesellschaft. Rech had been elected into the board of the work group earlier this year.
Main topic will be polycrystalline silicon thin films on glas. HZB researchers were able to increase the efficiency of these solar cells considerably
As speaker of the renewable energy program of the Helmholtz Association, Bernd Rech intends to discuss issues of the turnaround in energy policy in his new role in the DPG.
The autumn meeting of the DPG energy work group wil be in Bad Honnef on October 1 and 2. The Deutsche Physikalische Gesellschaft is an organisation that has as its member scientists working in universities, research institutions, and the industry as well as teachers and (PhD-)students. There are also about 160 institutional members.
- The twisted nanotubes that tell a storyIn collaboration with scientists in Germany, EPFL researchers have demonstrated that the spiral geometry of tiny, twisted magnetic tubes can be leveraged to transmit data based on quasiparticles called magnons, rather than electrons.
- 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.
- Joint Kyiv Energy and Climate Lab goes liveHelmholtz-Zentrum Berlin and the National University of Kyiv-Mohyla Academy established on 27 November a Joint Energy and Climate Lab.