1. School of Materials Science and Engineering, Xiangtan University, Xiangtan, China
2. State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, China
3. Radiation Detection Research Center, Northwest Institute of Nuclear Technology, Xi’an, China
4. School of Microelectronics and the State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, China
5. Department of Engineering Physics, Tsinghua University, Beijing, China