1. Energy and Large Area Electronics imec Kapeldreef 75 3001 Leuven Belgium
2. Departement Elektrotechniek - ESAT KU Leuven 3001 Leuven Belgium
3. Division Solar Cells ‐ Development and Characterization Fraunhofer Institute for Solar Energy Systems 79110 Freiburg Germany
4. Laboratory for Photovoltaic Energy Conversion University of Freiburg 79110 Freiburg Germany
5. Department of Physics University of Hasselt 3590 Diepenbeek Belgium