ICCAS OpenIR
Soluble Dithienothiophene Polymers: Effect of Link Pattern
Zhang, Shiming1,2,3; Fan, Haijun1,2,3; Liu, Yao1,2,3; Zhao, Guangjin1,2,3; Li, Qikai1,2; Li, Yongfang1,2; Zhan, Xiaowei1,2
2009-06-01
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume47Issue:11Pages:2843-2852
AbstractSoluble conjugated polymers based on 3,5-didecanyldithieno[3,2-b:2',3'-d] thiophene-single-bond (1), double-bond (2), and triple-bond linked (3)-were synthesized by palladium(0)-catalyzed Stille coupling reaction and oxidation polymerization. The thermal, absorption, emission, and electrochemical properties of these polymers were examined; the effect of the link pattern was studied. All polymers exhibit decomposition temperatures over 295 degrees C and glass-transition temperatures in the range of 137-202 degrees C. The absorption spectra of 1, 2, and 3 in thin films exhibit absorption maxima at 381, 584, and 444 rim, respectively. Polymer I exhibits intense green emission located at 510 nm in film, whereas polymers 2 and 3 are nonemissive both in solution and in film due to H-aggregate. Cyclic voltammograms of polymers 1, 2, and 3 display irreversible oxidation waves with onset oxidation potentials at 1.73, 0.78, and 1.03 V versus Ag(+)/Ag, respectively. Theory calculation on model compounds suggests that the dihedral angle decreases in the order of 1 > 3 > 2. On reducing the dihedral angle, the polymer exhibits a longer absorption maximum, a smaller bandgap, a less oxidizing potential and fluorescence quench, due to more coplanar and more pi-electron delocalized backbone structure. Polymer solar cells were fabricated based on the blend of polymer 2 and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM). The power conversion efficiency of 0.45% was achieved under AM 1.5, 100 mW cm(-2) using polymer 2:PCBM (1:2, w/w) as active layer. (c) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2843-2852, 2009
KeywordConjugated Polymers Dithienothiophene Photovoltaic Cells Structure-property Relations Synthesis
DOI10.1002/pola.23381
Indexed BySCI
Language英语
WOS IDWOS:000266388100011
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/68670
Collection中国科学院化学研究所
Corresponding AuthorZhan, Xiaowei
Affiliation1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Shiming,Fan, Haijun,Liu, Yao,et al. Soluble Dithienothiophene Polymers: Effect of Link Pattern[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2009,47(11):2843-2852.
APA Zhang, Shiming.,Fan, Haijun.,Liu, Yao.,Zhao, Guangjin.,Li, Qikai.,...&Zhan, Xiaowei.(2009).Soluble Dithienothiophene Polymers: Effect of Link Pattern.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,47(11),2843-2852.
MLA Zhang, Shiming,et al."Soluble Dithienothiophene Polymers: Effect of Link Pattern".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 47.11(2009):2843-2852.
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