1. School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Ground Water Pollution Control, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
2. International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, P. R. China