Institution: | 1. Photovoltaics and Thin Film Electronics Laboratory, Institute of Micro-engineering (IMT), Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue Breguet 2, 2000 Neuchâtel, Switzerland;2. Institute of Physics of the ASCR v. v. i., Cukrovarnicka 10, 162 53 Prague 6, Czech Republic |