1. Key Laboratory of Interface Science and Engineering in Advanced Materials of the Ministry of Education, Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan 030024, P.R. China
2. College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P.R. China
3. Key Laboratory of Advanced Transducers and Intelligent Control System of Ministry of Education, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, P.R. China
4. Department of Physics, Institute of Advanced Materials, and Institute of Research and Continuing Education (Shenzhen), Hong Kong Baptist University, Kowloon Tong, NT, Hong Kong, P.R. China