1. Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
2. Department of Materials Science and Engineering and Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon, Hong Kong SAR, China
3. School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
4. Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, New
Territories, Hong Kong SAR, China
5. School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong SAR, China
6. Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
7. College of Physics, Chongqing University, Chongqing 401331, China