1. École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin-Film Electronics Laboratory; Rue de la Maladière 71B CH-2000 Neuchâtel Switzerland
2. CSEM, PV-center; Rue Jaquet-Droz 1 2000 Neuchâtel Switzerland