1. Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
2. Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
3. EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
4. Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
5. Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
6. imec, Kapeldreef 75, Leuven 3001, Belgium
7. Department of Electrical Engineering, Kuwait University, Safat 13060, Kuwait
8. Academy for Engineering & Technology (FAET), Fudan University, 200433 Shanghai, P. R. China