1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
2. Faculty of Physics and Electronic Science
3. Hubei University
4. Wuhan 430062
5. China
6. Stuttgart Center for Electron Microscopy
7. Max Planck Institute for Solid State Research
8. 70569 Stuttgart
9. Germany
10. CIMAP UMR 6252
11. CNRS-ENSICAEN-CEA-UCBN
12. 14050 Caen
13. France