1. State Key
Laboratory of Supramolecular Structure and Materials, Jilin University, No. 2699, Qianjin
Street, Changchun, Jilin 130012, P. R. China
2. Institute
of Polymer Optoelectronic Materials and Devices, State Key Laboratory
of Luminescent Materials and Devices, South China University of Technology, Guangzhou, Guangdong 510640, China