1. College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121000, P. R. China
2. Collaborative Innovation Center of Rare-Earth Optical Functional Materials and Devices Development, School of Physics and Opto-Electronic Technology, Baoji University of Arts and Sciences, Baoji, 721016, P. R. China
3. Key Laboratory of New Energy and Rare Earth Resource Utilization of State Ethnic Affairs Commission, College of Physics and Materials Engineering, Dalian Minzu University, 18 Liaohe West Road, Dalian, 116600, P. R. China