1. Tianjin Key Laboratory of Molecular Optoelectronic Science Department of Chemistry School of Science Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 China
2. Department of Chemistry Northwestern University 2145 Sheridan Road Evanston IL 60208 USA
3. Beijing Key Laboratory for Optical Materials and Photonic Devices Department of Chemistry Capital Normal University Beijing 100048 China
4. School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
5. Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Science (ICCAS) Beijing 100190 China
6. Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China