1. Shenzhen Key Laboratory of Polymer Science and Technology; College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
2. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province; College of Optoelectronic Engineering; Shenzhen University; Shenzhen 518060 China
3. 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 P. R. China