1. Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
2. College of Chemistry and Key Laboratory of Advanced Organic Functional Materials of Colleges and Universities of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China
3. Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, People’s Republic of China