1. Northeast Petroleum University, School of Electronics Science, Daqing 163318, China
2. Institute of Microelectronics, Agency for Science, Technology and Research, 117685, Singapore
3. Northeast Petroleum University, School of Electronics Science, Daqing 163318, ChinacSchool of Science, Harbin Engineering, Harbin 150001, China
4. City University of Hong Kong, Department of Physics and Materials Science, Tat Chee Avenue, Kowloon, Hong Kong, China