1. Institute of Polymer Optoelectronic Materials & Devices
2. State Key Laboratory of Luminescent Materials & Devices
3. South China University of Technology
4. Guangzhou 510640
5. P. R. China
6. Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
7. Sun Yat-sen University
8. Guangzhou 510275
9. Department of Chemistry
10. National University of Singapore
11. Singapore