1. Institute of Materials for Electronics and Energy Technology (I-MEET); University Erlangen-Nuremberg; Martensstrasse 7 91058 Erlangen Germany
2. School of Materials Science and Engineering; Shanghai University; Shangda Road 99 200444 Shanghai China
3. Center for Nanoanalysis and Electron Microscopy (CENEM); University Erlangen-Nuremberg; Cauerstraße 6 91058 Erlangen Germany
4. Bavarian Center for Applied Energy Research (ZAE Bayern); Am Weichselgarten 7 91058 Erlangen Germany