1. Department of PhotovoltaicsIMEC—Partner in Solliance Kapeldreef 75 Leuven 3001 Belgium
2. Department of Electrical EngineeringKU Leuven Leuven 3001 Belgium
3. Department of Photovoltaics Materials ResearchZentrum für Sonnenenergie‐ und Wasserstoff‐Forschung Baden‐Württemberg (ZSW) Stuttgart 70563 Germany
4. Institute of Microstructure TechnologyKarlsruhe Institute of Technology Eggenstein‐Leopoldshafen 76344 Germany