1. Key Laboratory of
Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional
Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, People’s Republic of China
2. College of Materials Science
and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
3. Key Laboratory for the Physics and Chemistry
of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People’s Republic of China