1. Institute of Energy Innovation, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2. College of Physics and Information Engineering, Minnan Normal University, Zhangzhou 361000, China
3. Department of Microsystems, University of South-Eastern Norway, Horten 3184, Norway
4. College of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China