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题名: Effect of Fluorination on Molecular Orientation of Conjugated Polymers in High Performance Field-Effect Transistors
作者: Zhang, Andong1, 4; Xiao, Chengyi1; Wu, Yang2; Li, Cheng1; Ji, Yunjing1; Li, Lin3; Hu, Wenping1; Wang, Zhaohui1; Ma, Wei2; Li, Weiwei1
刊名: MACROMOLECULES
发表日期: 2016-09-13
卷: 49, 期:17, 页:6431-6438
收录类别: SCI
英文摘要: Fluorinated conjugated polymers have been widely used in high performance polymer solar cells, but they showed limited application in field-effect transistors (FETs). In this paper, we focus on the influence of fluorine atoms upon charge transport of conjugated polymers in FET devices. Two series of conjugated polymers without or with fluorine atoms were designed and applied into FETs. Nonfluorinated conjugated polymers show high hole mobilties up to 11.16 cm(2) V-1 s(1), while fluorinated polymers exhibit low hole mobilities below 1.80 cm(2) V-1 s(1). Further investigation by differential scanning calorimetry (DSC) and 2D grazing-incidence wide-angle X-ray scattering (2D-GIWAXS) reveal that fluorinated conjugated polymers show low crystallinity and face-on orientation in thin films, explaining their poor hole mobilities in FET devices. Our results clearly show how the chemical structures influence the charge transport properties, which can be used to design new conjugated polymers toward high performance FETs.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35279
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 10090, Peoples R China
2.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
3.Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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