1. The
State Key Laboratory of Luminescent Materials and Devices, and Guangdong
Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,
School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
2. Department
of Applied Physics, and Department of Applied Biology and Chemical
Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China
3. College
of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
4. School
of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
5. The
College of Materials and Energy, South China Agricultural University, Guangzhou 510640, China