1. Ecole Polytechnique Fédérale de Lausanne (EPFL) Institute of Electrical and Microengineering (IEM) Photovoltaics and Thin‐Film Electronics Laboratory Neuchâtel 2002 Switzerland
2. CSEM Sustainable Energy Center Neuchâtel 2002 Switzerland
3. Institute of Physics Slovak Academy of Sciences Dúbravská cesta 9 Bratislava 845 11 Slovakia
4. Center for Advanced Materials Application Slovak Academy of Sciences Dúbravská cesta 9 Bratislava 845 11 Slovakia
5. Institute of Applied Physics University of Tübingen 72076 Tübingen Germany
6. Laboratory for Thin Films and Photovoltaics Empa – Swiss Federal Laboratories for Materials Science and Technology Dübendorf 8600 Switzerland
7. Laboratory of Thin Films Institute of Physics ASCR, Cukrovarnická 10 Prague 162 00 Czech Republic