1. Key Laboratory of Organic Optoelectronics and Molecular Engineering
2. Department of Chemistry
3. Tsinghua University
4. Beijing 100084
5. P. R. China
6. Capital Normal University
7. Beijing 100048
8. Beijing National Laboratory for Molecular Sciences
9. CAS Key Laboratory of Organic Solids
10. CAS Research/Education Center for Excellence in Molecular Sciences
11. Institute of Chemistry
12. Chinese Academy of Sciences