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题名: Methylated conjugated polymers based on diketopyrrolopyrrole and dithienothiophene for high performance field-effect transistors
作者: Yang, Fan1; Li, Cheng1; Zhang, Jianqi2; Feng, Guitao1; Wei, Zhixiang2; Li, Weiwei1
关键词: Field-effect transistors ; Conjugated polymer ; Diketopyrrolopyrrole ; Crystalline
刊名: ORGANIC ELECTRONICS
发表日期: 2016-10-01
卷: 37, 页:366-370
收录类别: SCI
英文摘要: In this work, a series of conjugated polymers based on diketopyrrolopyrrole (DPP) and dithienothiophene were designed for application in field-effect transistors (FETs). Owing to the synthetic nature of DPP units, the DPP polymers here contain different aromatic linkers with thiophene and methylthiophene, resulting in non-methylated and methylated DPP polymers. Methylated DPP polymers were found to show good crystalline properties and provide high hole mobilties up to 5.32 cm(2) V-1 s(-1) in FETs, while non-methylated polymer exhibits a hole mobility of 3.16 cm(2) V-1 s(-1). Especially, the polymer containing asymmetric linkers presents "face-on" orientation in thin films but provides the highest mobility. Our results reveal that the polymers incorporating methyl units as side chains can be used to realize high carrier mobility in FETs. (C) 2016 Elsevier B.V. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35250
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.Chinese Acad Sci, Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China
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