Key Lab of Semiconductor Materials Science;
Institute of Semiconductors;
Chinese Academy of Sciences;
Beijing 100083;
School of Electronic Engineering;
Xi'an University of Posts and Telecommunications;
Xi'an 710049;
Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices;
Beijing 100083;
ISCAS-XJTU Joint Laboratory of Functional Materials and Devices for Informatics;
Beijing 100083;
Beijing Huajin Uhuangwei Technology Co.;
Ltd.;
Beijing 100036;