1. Department of Physics, Anhui Normal University, Wuhu, Anhui 241000, China
2. Anhui Province Key Laboratory of Optoelectric Materials Science and Technology, Anhui Normal University, Wuhu, Anhui 241000, China
3. School of Science, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China
4. College of Chemistry and Material Science, Anhui Normal University, Wuhu, Anhui 241000, China
5. Department of Physics, Sichuan Normal University, Chengdu, Sichuan 610068, China