1. College of Rare Earths, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China
2. Key Laboratory of Rare Earth Luminescence Materials and Devices of Jiangxi Province, Jiangxi University of Science and Technology, Ganzhou 341000, P. R. China
3. National Engineering Research Center for Ionic Rare Earth, Ganzhou, 341000, P. R. China
4. National Rare Earth Functional Materials Manufacturing Innovation Centre, Ganzhou, 341000, P. R. China