1. Institute of Materials for Electronics and Energy Technology (I-MEET); Department of Materials Science and Engineering; Friedrich-Alexander University Erlangen-Nürnberg; Martensstrasse 7 91058 Erlangen Germany
2. Erlangen Graduate School in Advanced Optical Technologies (SAOT); Paul-Gordan-Str.6 91052 Erlangen Germany
3. Organic Materials & Devices (OMD); Institute of Polymer Materials; Friedrich-Alexander University Erlangen-Nürnberg; Martensstraße 7 91058 Erlangen Germany
4. Department of Chemistry and Pharmacy; Friedrich-Alexander University Erlangen-Nürnberg; Henkestraße 42 91054 Erlangen Germany
5. Bavarian Center for Applied Energy Research (ZAE Bayern); Am Weichselgarten 7 91058 Erlangen Germany