1. School of Optoelectronic Science and Engineering
2. University of Electronic Science and Technology of China (UESTC)
3. Chengdu 610054
4. P. R. China
5. Department of Physics
6. Fudan University
7. Shanghai 200433
8. Department of Chemistry
9. Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province
10. Shantou University
11. Guangdong 515063
12. Institute of Functional Nano & Soft Materials (FUNSOM)
13. Soochow University
14. Suzhou 215123