1. School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China
2. School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
3. School of Materials Science and Engineering, Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Anhui 230009, China
4. Academy of Optoelectronic Technology, National Engineering Laboratory of Special Display Technology, Hefei University of Technology, Hefei 230009, China