SYNTHESIS, CHARACTERIZATION AND SOLAR CELL APPLICATION OF A D-A COPOLYMER WITH CYCLOPENTADITHIOPHENE AND FLUORENE AS DONOR UNITS  

作　　者：Hai-yang Song 童辉 Zhi-yuan Xie 王利祥 Fo-song Wang 

机构地区：[1]State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Journal of Polymer Science》2013年第8期1117-1126,共10页高分子科学（英文版）

基　　金：financially supported by the 973 Project(Nos.2009CB623601and2009CB930603);the Science Fund for Creative Research Groups(No.20921061);the National Natural Science Foundation of China(Nos.51173179,20904055 and21074130)

摘　　要：In this paper, a new D-A copolymer, PFDBCPDT, which consists of benzo-2,1,3-thiadiazole as acceptor units and cyclopentadithiophene and fluorene as donor units, was synthesized. The thermal, electrochemical, photophysical and photovoltaic properties of PFDBCPDT were studied. PFDBCPDT showed a low optical band gap of 1.84 eV, and relatively low HOMO level of-5.69 eV. The best device performance was obtained by PFDBCPDT/PC61BM （1：3） with 0.5 vol% DIO. The device exhibited a power conversion efficiency of 3.06%, with a relatively high open circuit voltage of 0.87 eV.In this paper, a new D-A copolymer, PFDBCPDT, which consists of benzo-2,1,3-thiadiazole as acceptor units and cyclopentadithiophene and fluorene as donor units, was synthesized. The thermal, electrochemical, photophysical and photovoltaic properties of PFDBCPDT were studied. PFDBCPDT showed a low optical band gap of 1.84 eV, and relatively low HOMO level of-5.69 eV. The best device performance was obtained by PFDBCPDT/PC61BM （1：3） with 0.5 vol% DIO. The device exhibited a power conversion efficiency of 3.06%, with a relatively high open circuit voltage of 0.87 eV.

关 键 词：Polymer solar cell COPOLYMERIZATION FLUORENE CYCLOPENTADITHIOPHENE Conjugated polymers. 

分 类 号：O631.3[理学—高分子化学]