Workshop on “Microstructure Characterization and Modeling for Solar Cells”
© HZB
The winter workshop was held in a beautiful location at Spitzingsee (Bayern) from 22. to 26. february 2015 and organised by Helmholtz Virtual Institute "Microstructure Control for Thin-Film Solar Cells". The next winter workshop will be planned for 2017.
About the Helmholtz Virtual Institute „Microstructure control for thin film solar cells“
In this Virtual Institute (VI), the formation of structural defects and related strain during the growth of thin film solar cells will be investigated by combining various experimental as well as simulation approaches. The aim of this Virtual Institute is to understand and control the formation of structural defects and strain during the growth of polycrystalline silicon (poly-Si) and Cu(In,Ga)Se2 (CIGSe) thin films by optimized growth parameters. Unique experimental in-situ techniques for monitoring the growth process of these thin films, such as X-ray diffraction and fluorescence analysis at a synchrotron beamline, are combined with phase field modeling as well as density-functional theory and molecular dynamics simulations.
- Funding: Helmholtz Association
- Leading Center: Helmholtz-Zentrum Berlin für Materialien und Energie
- Partners involved: TU Berlin, FU Berlin, TU Darmstad, University of Oxford (UK), ETH Zürich (Schweiz), SuperStem (UK)
- Speakers: Prof. Dr. Susan Schorr, HZB
- Duration: Nov. 2012 till Oct. 2017
- 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.
- Peat as a sustainable precursor for fuel cell catalyst materialsIron-nitrogen-carbon catalysts have the potential to replace the more expensive platinum catalysts currently used in fuel cells. This is shown by a study conducted by researchers from the Helmholtz-Zentrum Berlin (HZB), Physikalisch-Technische Bundesanstalt (PTB) and universities in Tartu and Tallinn, Estonia. At BESSY II, the team observed the formation of complex microstructures within various samples. They then analysed which structural parameters were particularly important for fostering the preferred electrochemical reactions. The raw material for such catalysts is well decomposed peat.
- Helmholtz Investigator Group on magnonsDr Hebatalla Elnaggar is setting up a new Helmholtz Investigator Group at HZB. At BESSY II, the materials scientist will investigate so-called magnons in magnetic perovskite thin films. The aim is to lay the foundations for future terahertz magnon technology: magnonic devices operating in the terahertz range could process data using a fraction of the energy required by the most advanced semiconductor devices, and at speeds up to a thousand times faster.