1. Institute for Materials Research (IMO-IMOMEC), Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium
2. IMEC Division, IMOMEC, Imec vzw Wetenschapspark 1, 3590 Diepenbeek, Belgium
3. Energyville, Thor Park 8320, 3600 Genk, Belgium
4. Center for Solar Energy and Hydrogen Research Baden-Württemberg, Meitnerstraße 1, 70563 Stuttgart, Germany
5. Institut Photovoltaique d’Ile de France, Centre National de la Recherche Scientique, 18 Boulevard Thomas Gobert, 91120 Palaiseau, France