1. Institute of Molecular Aggregation Science, Tianjin University, Tianjin 300072, China
2. Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates (South China University of Technology), Guangzhou 510640, China
3. Department of Chemistry, Wuhan University, Wuhan 430072, China
4. Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China