Author Affiliations

Kezhou Fan,¹ Christopher Chang Sing Chan,¹ Ligang Yuan,² Keyou Yan,² and Kam Sing Wong^1,*

¹Department of Physics and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clearwater Bay, Hong Kong, P. R. China

²School of Environment and Energy, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou 510000, Guangdong, P. R. China

^*Corresponding author: phkswong@ust.hk