1. School of Microelectronics, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices, Xidian University, Xi’an 710071, China
2. Shanghai Academy of Spaceflight Technology, Shanghai 201109, China
3. Department of Electronic Engineering, Xi’an University of Technology, Xi’an Key Laboratory of Power Electronics Devices and High Efficiency Power Conversion, Xi’an 710048, China
4. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China