1. Physics of Energy Conversion and Storage, Technical University of Munich, James-Franck-Straße 1, 85748 Garching, Germany
2. Nanosystems Initiative Munich (NIM), Schellingstraße 4, 80799 Munich, Germany
3. Univ. Grenoble Alpes, Univ.
Savoie Mont Blanc, CNRS, Grenoble INP, LEPMI, 38000 Grenoble, France
4. Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00 Brno, Czech Republic
5. Walter Schottky Institute, Technical University of Munich, Am Coulombwall 4a, 85748 Garching, Germany