[1] Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing,400044, China
[2] College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing,400065, China
[3] School of Materials Science and Engineering, Zhengzhou University, Zhengzhou,450001, China
[4] School of Microelectronics, Xidian University, Xi'an,710071, China
[5] Hangzhou Institute of Technology, Xidian University, Hangzhou,311200, China