1. School of Physics and Electronics, Hunan University, Changsha 410082, People’s Republic of China
2. Physics and Electronic Engineering Department, Xinxiang University, Xinxiang 453003, People’s Republic of China
3. Department of Physics and Astronomy, Clemson Nanomaterials
Center and COMSET, Clemson University, Clemson, South Carolina 29634, United States
4. 2D Material Technology Company Limited, Wing Lok Street, Sheung
Wan, Hong Kong 999077, People’s Republic of China