1. SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
2. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
3. Department of Physics and Singapore Synchrotron Light Source, National University of Singapore, 5 Research Link, Singapore 117603
4. National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei 230029, China