1. School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
2. School of Microelectronic, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
3. Radiation Detection Research Center, Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China
4. MOE Key Laboratory of Advanced Micro-Structured Materials, School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai 200092, People's Republic of China