1. The Hong Kong University of Science & Technology (HKUST) Shenzhen Research Institute; No. 9 Yuexing 1st RD, South Area, Hi-Tech Park Nanshan Shenzhen China 518057
2. Department of Chemistry; Institute of Molecular Functional Materials and Division of Biomedical Engineering; HKUST, Clear Water Bay Kowloon Hong Kong
3. Guangdong Innovative Research Team; SCUT-HKUST Joint Research Laboratory; State Key Laboratory of Luminescent Materials and Devices, South China University of Technology (SCUT); Guangzhou 51064 China