1. Friedrich-Alexander University Erlangen-Nürnberg , Faculty of Engineering, Materials for Electronics and Energy Technology , Erlangen , Germany
2. Graduate School in Advanced Optical Technologies , Erlangen , Germany
3. Helmholtz-Institut Erlangen-Nürnberg , Erlangen , Germany
4. SUNSET Energietechnik GmbH , Adelsdorf , Germany
5. Carl von Ossietzky University Oldenburg , Oldenburg , Germany
6. LayTec AG , Berlin , Germany
7. Carl von Ossietzky University of Oldenburg, Institute of Physics, Energy and Semiconductor Research Laboratory , Oldenburg , Germany
8. Bavarian Centre for Applied Energy Research , Erlangen , Germany