1. Department of Physics
2. Soochow University
3. Suzhou 215006, China
4. Yancheng Institute of Technology
5. Yancheng 224003, China
6. Analysis and Testing Center
7. Suzhou 215123, China
8. Institute of Functional Nano and Soft Materials
9. Institute of Photonics and Optoelectronics
10. Department of Electrical Engineering, and Center for Emerging Material and Advanced Devices
11. National Taiwan University
12. Taipei 106-17, Taiwan