1. Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices
2. School of Physics and Electronics
3. Hunan University
4. Changsha 410082
5. China
6. The College of Computer Science and Electronic Engineering and National Supercomputing Center in Changsha
7. College of Chemistry and Chemical Engineering
8. Changsha
9. People's Republic of China