1. Department of Materials Science and Engineering City University of Hong Kong Kowloon Hong Kong China
2. Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics Northwestern Polytechnical University Xi'an China
3. Hong Kong Center for Cerebro‐Cardiovascular Health Engineering (COCHE), Shatin, NT Hong Kong China
4. Hong Kong Institute for Clean Energy City University of Hong Kong Kowloon Hong Kong China