1. Madrid Institute for Advanced Studies IMDEA Nanociencia 28049 Madrid Spain
2. Wright Center for Photovoltaics Innovation and Commercialization University of Toledo Toledo OH 43606 USA
3. Institute of Physical and Theoretical Chemistry Julius-Maximilian University 97074 Würzburg Germany
4. BELECTRIC OPV GmbH 90443 Nürnberg Germany
5. Institute of Materials for Electronics and Energy Technology (i-MEET) Friedrich-Alexander University Erlangen-Nürnberg 91058 Erlangen Germany