1. Qatar Environment and Energy Research Institute (QEERI), Hamad bin Khalifa University, Qatar Foundation, P.O.
Box 5825, Doha, Qatar
2. Photovoltaics and Thin-Film Electronics Laboratory (PV-lab), Institute of Microengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Rue de la Maladière 71B, CH-2002 Neuchâtel, Switzerland
3. Swiss Center for Electronics and Microtechnology (CSEM), PV-center, Rue Jaquet Droz 1, CH-2002 Neuchâtel, Switzerland