1. Key Laboratory of Advanced Transducers and Intelligent Control System (Ministry of Education)
2. Taiyuan University of Technology
3. Taiyuan 030024
4. China
5. Department of Physics and Institute of Advanced Materials
6. Centre for Optical and Electromagnetic Research
7. South China Academy of Advanced Optoelectronics
8. South China Normal University
9. Guangzhou 510006
10. Key Laboratory of Interface Science and Engineering in Advanced Materials