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Systematic Investigation of Side-Chain Branching Position Effect on Electron Carrier Mobility in Conjugated Polymers
Dou, Jin-Hu; Zheng, Yu-Qing; Lei, Ting; Zhang, Shi-Ding; Wang, Zhi; Zhang, Wen-Bin; Wang, Jie-Yu; Pei, Jian
Source PublicationADVANCED FUNCTIONAL MATERIALS
2014-10-29
ISSN1616-301X
DOI10.1002/adfm.201401822
Volume24Issue:40Pages:6270-6278
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS KeywordFIELD-EFFECT TRANSISTORS ; THIN-FILM TRANSISTORS ; POWER-CONVERSION EFFICIENCY ; DONOR-ACCEPTOR POLYMERS ; HIGH-HOLE-MOBILITY ; CM(2) V-1 S(-1) ; N-TYPE ; SOLAR-CELLS ; ORGANIC SEMICONDUCTORS ; PRINTED TRANSISTORS
AbstractRecently, polymer field-effect transistors have gone through rapid development. Nevertheless, charge transport mechanism and structure-property relationship are less understood. Here we use strong electron-deficient benzodifurandione-based poly(p-phenylene vinylene) (BDPPV) as polymer backbone and develop six BDPPV-based polymers (BDPPV-C1 to C6) with various side-chain branching positions to systematically study the side-chain effect on device performance. All the polymers exhibited ambient-stable n-type transporting behaviors with the highest electron mobility of up to 1.40 cm 2 V-1 s(-1). The film morphologies and microstructures of all the six polymers were systematically investigated. Our results demonstrate that the interchain pi-pi stacking distance decreases as moving the branching position away from polymer backbones, and an unprecedentedly close pi-pi stacking distance down to 3.38 angstrom is obtained for BDPPV-C4 to C6. Nonetheless, closer pi-pi stacking distance does not always correlate with higher electron mobility. Polymer crystallinity, thin film disorder, and polymer packing conformation, which all influenced by side-chain branching position, are proved to show significant influence on device performance. Our study not only reveals that pi-pi stacking distance is not the decisive factor on carrier mobility in conjugated polymers but also demonstrates that side-chain branching position engineering is a powerful strategy to modulate and balance these factors in conjugated polymers.
Language英语
WOS IDWOS:000344249900003
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:66[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/167349
Collection中国科学院大连化学物理研究所
Corresponding AuthorDou, Jin-Hu
AffiliationPeking Univ, Beijing Natl Lab Mol Sci, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Coll Chem & Mol Engn,M, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Dou, Jin-Hu,Zheng, Yu-Qing,Lei, Ting,et al. Systematic Investigation of Side-Chain Branching Position Effect on Electron Carrier Mobility in Conjugated Polymers[J]. ADVANCED FUNCTIONAL MATERIALS,2014,24(40):6270-6278.
APA Dou, Jin-Hu.,Zheng, Yu-Qing.,Lei, Ting.,Zhang, Shi-Ding.,Wang, Zhi.,...&Pei, Jian.(2014).Systematic Investigation of Side-Chain Branching Position Effect on Electron Carrier Mobility in Conjugated Polymers.ADVANCED FUNCTIONAL MATERIALS,24(40),6270-6278.
MLA Dou, Jin-Hu,et al."Systematic Investigation of Side-Chain Branching Position Effect on Electron Carrier Mobility in Conjugated Polymers".ADVANCED FUNCTIONAL MATERIALS 24.40(2014):6270-6278.
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