1. State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
2. Department
of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen, Guangdong 518055, China
3. Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
4. Hong Kong Branch
of Chinese National Engineering Research Center for Tissue Restoration
and Reconstruction, Hong Kong, China