1. Wuhan National Laboratory for Optoelectronics (WNLO)
2. Huazhong University of Science and Technology
3. Wuhan 430074, China
4. The State Key Lab for Refractory and Metallurgy
5. Wuhan University of Science and Technology
6. Wuhan 430081, China
7. Department of Materials Science and Physics
8. City University of Hong Kong
9. Kowloon, China