1. Hubei Collaborative
Innovation Center for Advanced Organic Chemical Materials, Hubei Key
Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072, People’s Republic of China
2. State Key Laboratory
of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China