1. Frontier Institute of Chip and System, Fudan University, Shanghai 200438, China
2. Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 200433, China
3. Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
4. State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, China
5. Department of Physics, National University of Singapore, Singapore 117542, Singapore
6. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
7. National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Jiang Su 215123, China