1. State Key Laboratory of Polymer Physics and Chemistry; Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center for Excellence in Molecular Sciences; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. School of Chemistry and Biology Engineering; University of Science and Technology Beijing; Beijing 100083 China
4. Institute of Material Science and Engineering; Ocean University of China; Qingdao 266100 P. R. China
5. Biomolecular and Organic Electronics IFM; Linköping University; Linköping 58183 Sweden