1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190
2. University of Chinese Academy of Sciences, Beijing 100190
3. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Fuzhou 350207
4. Department of Chemistry, National University of Singapore, Singapore 117543
5. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084
6. Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072