1. State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
2. Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123 , China
3. School of Chemistry and Biology Engineering, University of Science and Technology Beijing , Beijing 100083 , China
4. School of Physics, State Key Laboratory of Crystal Materials, Shandong University , Jinan 250100 , China
5. University of Chinese Academy of Sciences , Beijing 100049 , China
6. CAS Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China