1. State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 P. R. China
2. Jihua Hengye Electronic Materials CO. LTD. Foshan Guangdong Province 52800 P. R. China
3. State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials and Devices South China University of Technology Wushan Road 381 Guangzhou Guangdong Province 510640 P. R. China
4. Chongqing Research Institute Jilin University Chongqing 401120 P. R. China