1. College of Information Science and Technology, Beijing University of Chemical Technology, No. 15 North 3rd Ring Rd., Beijing, 100029, China
2. State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China