Application of an A-A'-A-Containing Acceptor Polymer in Sequentially Deposited All-Polymer Solar Cells

被引:18
作者
Fang, Yuan [1 ]
Jin, Hui [1 ]
Raynor, Aaron [1 ]
Wang, Xiao [1 ]
Shaw, Paul E. [1 ]
Kopidakis, Nikos [2 ]
McNeill, Christopher R. [3 ]
Burn, Paul L. [1 ]
机构
[1] Univ Queensland, Sch Chem & Mol Biosci, Ctr Organ Photon & Elect, Brisbane, Qld 4072, Australia
[2] Macquarie Univ, Sch Engn, Sydney, NSW 2109, Australia
[3] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia
基金
澳大利亚研究理事会;
关键词
polymeric electron acceptor; electron mobility; solution-processed; sequentially deposited; organic solar cells; CONJUGATED POLYMER; PROGRESS;
D O I
10.1021/acsami.8b05875
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
PNNT has been prepared as a polymeric electron acceptor for organic solar cells. The polymer has an A-A'-A acceptor motif linked alternatively with thiophene and vinyl moieties. The A'-unit is a naphthalene diimide, while the A groups are thiazoles. PNNT films were found to have an estimated electron affinity of approximate to 4.3 eV and an electron mobility of the order of 10(-4) cm(2) V-1 s(-1). Its relatively low solubility in common chlorinated solvents at ambient temperature allowed the manufacture of sequentially deposited (SD) devices, which were found to have significantly higher efficiency than that of bulk heterojunction (BHJ) solar cells containing the same materials. Grazing-incidence wide-angle X-ray scattering measurements indicated that the SD films retained the ordering of the individual polymers to a greater extent compared to the BHJ films. The best SD devices were found to have a power conversion efficiency of up to 4.5%, with stable performance under thermal stress.
引用
收藏
页码:24046 / 24054
页数:9
相关论文
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POLYMER CHEMISTRY, 2011, 2 (11) :2668-2673