1. Centre for Advanced Photovoltaics FEE, CTU in Prague Technická 2 Prague 166 27 Czech Republic
2. Institute of Physics of the Czech Academy of Sciences Cukrovarnická 10 Prague 162 00 Czech Republic
3. Institute of Microengineering (IMT) Photovoltaic and Thin‐Film Electronics Laboratory École Polytechnique Fédérale de Lausanne (EPFL) Rue de la Maladière 71b Neuchâtel 2002 Switzerland
4. King Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Thuwal 23955‐6900 Saudi Arabia
5. CSEM PV‐Center Jaquet‐Droz 1 Neuchâtel 2002 Switzerland