1. School of Physics and Electronics
2. Hunan Provincial Key Laboratory of Multi-electron based Energy Storage Devices
3. Hunan University
4. Changsha
5. China
6. School of Chemistry and Chemical Engineering
7. Taishan University
8. Tai’an
9. P. R. China
10. School of Materials Science and Engineering
11. Sun Yat-sen University
12. Guangzhou
13. Department of Physics and Astronomy
14. Clemson Nanomaterials Institute
15. Clemson University
16. Clemson
17. USA