ICCAS OpenIR
Synthesis of a soluble conjugated copolymer based on dialkyl-substituted dithienothiophene and its application in photovoltaic cells
Zhang, Shiming1,2,3; He, Chao4; Liu, Yao1,2,3; Zhan, Xiaowei1,2; Chen, Junwu4
2009-07-17
Source PublicationPOLYMER
ISSN0032-3861
Volume50Issue:15Pages:3595-3599
AbstractA soluble conjugated alternating 3,5-didecanyldithieno[3,2-b:2',3'-d]thiophene-thiophene copolymer was synthesized by palladium(0)-catalyzed Stille coupling reaction. The thermal, absorption, emission, electrochemical, and photovoltaic properties of the polymer were examined. A weight-average molecular weight around 6.2 x 10(4) and a polyclispersity, index of 1.8 was estimated for the polymer using gel permeation chromatography. The polymer exhibits good thermal stability with decomposition temperature of 340 degrees C and glass-transition temperature of 136 degrees C. The polymer shows strong absorption peaked at 505 nm in diluted solution and 518 nm in thin film with an optical band gap 2.0 eV. The polymer exhibits intense emission located at 550 nm in solution and 603 nm in film. The HOMO and LUMO energies of the polymer were estimated to be -5.4 and -3.4 eV, respectively, by cyclic voltammetry. Polymer solar cells were fabricated based on the blend of the polymer and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM). The power conversion efficiency of 0.7% was achieved under AM 1.5, 100 mW/cm(2) using polymer:PCBM (1:4, w/w) as active layer. (C) 2009 Elsevier Ltd. All rights reserved.
KeywordConjugated Polymer Dithienothiophene Synthesis
DOI10.1016/j.polymer.2009.05.031
Indexed BySCI
Language英语
WOS IDWOS:000268306700024
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66642
Collection中国科学院化学研究所
Corresponding AuthorZhan, Xiaowei
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
4.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Shiming,He, Chao,Liu, Yao,et al. Synthesis of a soluble conjugated copolymer based on dialkyl-substituted dithienothiophene and its application in photovoltaic cells[J]. POLYMER,2009,50(15):3595-3599.
APA Zhang, Shiming,He, Chao,Liu, Yao,Zhan, Xiaowei,&Chen, Junwu.(2009).Synthesis of a soluble conjugated copolymer based on dialkyl-substituted dithienothiophene and its application in photovoltaic cells.POLYMER,50(15),3595-3599.
MLA Zhang, Shiming,et al."Synthesis of a soluble conjugated copolymer based on dialkyl-substituted dithienothiophene and its application in photovoltaic cells".POLYMER 50.15(2009):3595-3599.
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