1. Department of Electrical Engineering, City University of Hong Kong, Hong Kong SAR, China
2. Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong SAR, China
3. Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
4. College of Integrated Circuits and Optoelectronic Chips, Shenzhen Technology University, Shenzhen 518118, China
5. College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
6. Department of Chemistry, The Chinese University of Hong Kong, Hong Kong SAR, China
7. Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
8. Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong SAR, China
9. Huawei Technologies Co., LTD., Shenzhen 518129, China