1. Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing University, Nanjing, China
2. Institute for Electric Light Sources, School of Information Science and Technology, Fudan University, Shanghai, China
3. Jiangsu Institute of Advanced Semiconductors, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
4. College of Electronic and Optical Engineering and College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing, China
5. Jiangsu Institute of Advanced Semiconductors, Suzhou, China