1. School of Chemical Engineering and Technology
2. Tianjin University
3. Tianjin 300350
4. P. R. China
5. School of Physical Science and Technology
6. Soochow University
7. Suzhou 215006
8. Faculty of Materials Science and Applied Chemistry
9. Riga Technical University
10. Riga LV-1048
11. Latvia
12. Beijing National Laboratory for Molecular Science
13. Key Laboratory of Organic Solids, Institute of Chemistry
14. Chinese Academy of Sciences
15. Beijing 100190
16. Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry
17. Tsinghua University
18. Beijing 100084