1. SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
2. Department of Chemistry and Centre for Advanced 2D Materials (CA2DM), National University of Singapore (NUS), 3 Science Drive 3, Singapore 117543, Singapore