1. State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
2. Guangdong Choicore Optoelectronics Co. Ltd., Heyuan 517003, China
3. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China