1. Department
of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
2. Hong
Kong Branch of Chinese National Engineering Research Center for Tissue
Restoration and Reconstruction, Institute for Advanced Study, Institute
of Molecular Functional Materials, State Key Laboratory of Molecular
Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
3. Guangdong
Provincial Key Laboratory of Brain Science, Disease and Drug Development, HKUST Shenzhen Research Institute, No. 9 Yuexing First RD, South Area, Hi-tech Park
Nanshan, Shenzhen 518057, China
4. Guangdong
Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
5. National Center for Nanoscience and Technology, Beijing 100190, China
6. Department
of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China