1. School of physics and materials Nanchang University 999 Xuefu Avenue Nanchang 330031 P. R. China
2. College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC) Nanchang University 999 Xuefu Avenue Nanchang 330031 P. R. China
3. National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal University 99 Ziyang Avenue Nanchang 330022 P. R. China
4. Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010 P. R. China