1. Ecole Polytechnique
Fédérale de Lausanne (EPFL), Institute of Microengineering
(IMT), Photovoltaics and Thin-Film Electronics Laboratory, Rue de la Maladière 71b, 2002 Neuchâtel, Switzerland
2. CSEM, PV-Center, Jaquet-Droz
1, 2002 Neuchâtel, Switzerland