1. Jiangxi Provincial Key Laboratory of Advanced Electronic Materials and Devices, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
2. College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
3. College of Physics, Zhejiang University of Technology, Hangzhou 310023, China