1. Institute Silicon Photovoltaics, Helmholtz-Zentrum Berlin, Berlin 12489, Germany
2. HTW Berlin - University of Applied Sciences, Berlin 12459, Germany
3. Young Investigator Group Perovskite Tandem Solar Cells, Helmholtz-Zentrum Berlin, Berlin 12489, Germany
4. Fakultät IV - Elektrotechnik und Informatik, Technische Universität Berlin, Berlin 10587, Germany