1. Institute of Materials for Electronics and Energy Technology (i‐MEET)Friedrich‐ Alexander‐Universität Erlangen‐Nürnberg Martensstraße 7 Erlangen 91058 Germany
2. Helmholtz‐Institute Erlangen‐Nürnberg for Renewable Energy (HI ERN) Immerwahrstraße 2 Erlangen 91058 Germany