1. State Key Laboratory of Mechanical Transmission, College of Physics, Chongqing University, Chongqing 401331, China
2. Key Laboratory of Optoelectronic Functional Materials of Chongqing, College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, Chongqing 401331, China
3. Research Center for Materials Interdisciplinary Sciences, Chongqing University of Arts and Sciences, Chongqing 402160, China