1. Key Laboratory of Science and Technology on Silicon Devices
2. Institute of Microelectronics
3. Chinese Academy of Sciences
4. Beijing 100029
5. China
6. Key Laboratory of Luminescence and Optical Information
7. Ministry of Education
8. Institute of Optoelectronic Technology
9. Beijing Jiaotong University
10. Beijing
11. School of Materials Science and Engineering
12. Harbin Institute of Technology
13. Harbin 150001