1. Institute
of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, 117602, Singapore
2. Department
of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing 210009, China
3. School
of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
4. Department
of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore
5. Department of Chemistry, Division of Biomedical Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
6. SCUT-HKUST
Joint Research Laboratory, Guangdong Innovative Research Team, State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
7. National
Laboratory of Solid State Microstructure, Department of Material Science
and Engineering, Nanjing University, Nanjing 210093, China