1. Institute of Functional Material Chemistry, National & Local United Engineering Lab for Power Battery, Faculty of Chemistry; Northeast Normal University, Changchun; 130024 Jilin China
2. Centre for Advanced Optoelectronic Functional Materials Research and Key Laboratory for UV Light-Emitting Materials and Technology of Ministry of Education, National Demonstration Center for Experimental Physics Education; Northeast Normal University, Changchun; 130024 Jilin China