1. Photovoltaics
and Thin-Film Electronics Laboratory, Institute of Microengineering
(IMT), Ecole Polytechnique Fédérale de Lausanne (EPFL), Neuchâtel 2000, Switzerland
2. Laboratory of
Nanostructures and Nanomaterials, Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 162 00 Prague, Czech Republic
3. CSEM PV-center, Neuchâtel 2000, Switzerland