1. Department of Electronic and Information Engineering Research Institute for Smart Energy (RISE) The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China
2. The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057 China
3. Department of Applied Physical Sciences University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
4. Department of Physics The Chinese University of Hong Kong New Territories Hong Kong China
5. Department of Applied Physics The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China
6. Center of Super‐Diamond and Advanced Films (COSDAF) and Department of Chemistry City University of Hong Kong Kowloon Hong Kong China
7. Laboratory for Advanced Interfacial Materials and Devices Research Centre for Smart Wearable Technology Institute of Textiles and Clothing The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong China