1. Collaborative Innovation Center for Optoelectronic Science and TechnologyInternational Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen University Shenzhen 518060 China
2. College of Physics and Optoelectronic EngineeringShenzhen University Shenzhen 518060 China
3. College of Chemistry and Chemical Engineering Nantong 226019 Jiangsu P. R. China