1. State Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, China
2. Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, China
3. Institute for Interdisciplinary Biomass Functional Materials Studies, Jilin Engineering Normal University, Changchun 130052, China
4. Shandong Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Technology, Liaocheng University, Liaocheng 252059, China