1. Chinese Academy of Sciences Key Laboratory of Materials for Energy Conversion
2. Department of Materials Science and Engineering
3. University of Science and Technology of China
4. Hefei Anhui 230026
5. People's Republic of China
6. Department of Physics
7. Tamkang University
8. New Taipei City 25137
9. Taiwan
10. Materials Science and Engineering Department
11. University of Ioannina
12. GR-451 10 Ioannina
13. Greece
14. Research Institute of Petroleum Exploration and Development-LangFang
15. Langfang Hebei 065000
16. Wuhan Relabo Energy Technology Co., Ltd.
17. Wuhan Hubei 430000