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Synthesis and photovoltaic properties of copolymers of carbazole and thiophene with conjugated side chain containing acceptor end groups
Zhang, Zhi-Guo; Fan, Haijun; Min, Jie; Zhang, Siyuan; Zhang, Jing; Zhang, Maojie; Guo, Xia; Zhan, Xiaowei; Li, Yongfang
2011
Source PublicationPOLYMER CHEMISTRY
ISSN1759-9954
Volume2Issue:8Pages:1678-1687
AbstractFour alternating copolymers of carbazole (Cz) and thiophene (Th) with thienylene-vinylene (TV) conjugated side chains containing different acceptor end groups of aldehyde (PCzTh-TVCHO), mono-cyano (PCzTh-TVCN), di-cyano (PCzTh-TVDCN), and 1,3-diethyl-2-thiobarbituric acid (PCzTh-TVDT), have been designed and synthesized. The structures and properties of the main chain donor-side chain acceptor D-A copolymers were fully characterized. Through changing the acceptor group attached to the TV conjugated side chain on thiophene unit, the electronic properties and energy levels of the copolymers were effectively tuned. The effect of substituent on the electronic structures of the copolymers was also studied by molecular simulation. These results indicate that it is a simple and effective approach to tune the bandgap in a conjugated polymer by attaching an acceptor end group on the conjugated side chains. The polymers were used as donor in polymer solar cells. The device based on PCzTh-TVDCN/PC70BM demonstrates a power conversion efficiency of 2.16% with a high V-oc of 1.03 V under the illumination of AM1.5G, 100 mW cm(-2).
DOI10.1039/c1py00119a
Indexed BySCI
Language英语
WOS IDWOS:000292965500013
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/73346
Collection中国科学院化学研究所
Corresponding AuthorLi, Yongfang
AffiliationChinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zhi-Guo,Fan, Haijun,Min, Jie,et al. Synthesis and photovoltaic properties of copolymers of carbazole and thiophene with conjugated side chain containing acceptor end groups[J]. POLYMER CHEMISTRY,2011,2(8):1678-1687.
APA Zhang, Zhi-Guo.,Fan, Haijun.,Min, Jie.,Zhang, Siyuan.,Zhang, Jing.,...&Li, Yongfang.(2011).Synthesis and photovoltaic properties of copolymers of carbazole and thiophene with conjugated side chain containing acceptor end groups.POLYMER CHEMISTRY,2(8),1678-1687.
MLA Zhang, Zhi-Guo,et al."Synthesis and photovoltaic properties of copolymers of carbazole and thiophene with conjugated side chain containing acceptor end groups".POLYMER CHEMISTRY 2.8(2011):1678-1687.
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