1. Beijing Key Laboratory for Optical Materials and Photonic Devices
2. Department of Chemistry
3. Capital Normal University
4. Beijing 100048, P. R. China
5. Beijing National Laboratory for Molecular Science
6. Institute of Chemistry
7. Chinese Academy of Sciences
8. Beijing 100190, P. R. China
9. The University of Chinese Academy of Sciences
10. Laboratory of Optical Physics
11. Institute of Physics
12. Chinese Academy of Science
13. Key laboratory of Soft Matter Physics