1. International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University 1 , Shenzhen 518060, China
2. Electrical Engineering Division, Department of Engineering, University of Cambridge 2 , 9 JJ Thomson Avenue, Cambridge CB30FA, United Kingdom
3. School of Physics and Astronomy, Cardiff University 3 , The Parade, Cardiff CF24 3AA, United Kingdom
4. School of Engineering and Materials Science (SEMS), Queen Mary University of London 4 , London E1 4NS, United Kingdom
5. School of Engineering, Cardiff University 5 , The Parade, Cardiff CF24 3AA, United Kingdom
6. Zhejiang University – University of Illinois Urbana Champagne Institute (ZJUI); School of Information Science and Electronic Engineering, Zhejiang University International Campus 6 , Haining, China