1. Helmholtz Institute Ulm (HIU) 89081 Ulm Germany
2. Karlsruhe Institute of Technology (KIT) 76021 Karlsruhe Germany
3. Department of Energy Convergence Engineering Cheongju University Cheongju Chungbuk 28503 Republic of Korea
4. Central Facility of Electron Microscopy Electron Microscopy Group of Materials Science Ulm University Albert‐Einstein‐Allee 11 D‐89081 Ulm Germany