1. Department of Physics, Xiamen University, Xiamen 361005, People's Republic of China
2. China–Australia Joint Laboratory for Functional Nanomaterials, Xiamen University, Xiamen 361005, People's Republic of China
3. Experiment Center of Electronic Science and Technology, School of Microelectronics Science and Control Engineering, Changzhou University, Changzhou 213164, People's Republic of China
4. Department of Physics, College of Civil Engineering, MinNan University of Science and Technology, Shishi 362700, People's Republic of China
5. State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, People's Republic of China