1. Faculty of Physics and Electronic Science
2. Hubei University
3. State Key Laboratory on Integrated Optoelectronics
4. Jilin University Region
5. Wuhan 430062
6. Department of Materials and Optoelectronic Science
7. National Sun Yat-Sen University
8. Kaohsiung
9. Republic of China
10. Department of Physics
11. Institute of Microelectronics
12. Tsinghua University
13. Beijing
14. China