Enhai Song1, Yayun Zhou1, Xiao‐Bao Yang2, Zifeng Liao3, Weiren Zhao3, Tingting Deng1, Lingyan Wang1, Yanyan Ma1, Shi Ye1, Qinyuan Zhang1
1State Key Laboratory of Luminescent Materials and Devices, and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641, China
2Department of Physics, South China University of Technology, Guangzhou 510641, China
3School of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China