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Air-stable ambipolar organic field-effect transistors based on naphthalenediimide-diketopyrrolopyrrole copolymers

机译:基于萘二酰亚胺 - 二酮吡咯唑共聚物的空气稳定的Ambolar有机场效应晶体管

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摘要

Two air-stable polymeric semiconductors were rationally designed and synthesized, namely PNDI-DPP and PNDI-T(DPP)T, containing naphthalenediimide (NDI) units and diketopyrrolopyrrole (DPP). The coplanar thiophene-substituted DPP moieties act as donors rather than acceptors, even though DPP is an electron-deficient core. In a bottom-gate/top-contact device architecture, the effect of changing the number of thiophene linkers on the performance of the two completely different OFETs was investigated. PNDI-T(DPP)T presented unipolar p-type behaviour with an average hole mobility of 0.02 cm(2) V-1 s(-1), while PNDI-DPP exhibited ambipolar transport with average electron and hole mobilities of 5.7 x 10(-3) and 1.6 x 10(-3) cm(2) V-1 s(-1), respectively. Moreover, OFETs based on the two polymers showed good air-stability with negligible changes after being stored under ambient conditions for over 3 months.
机译:两个空气稳定的聚合物半导体合理地设计和合成,即含有萘二酰亚胺(NDI)单位和二酮吡咯(DPP)的PNDI-DPP和PNDI-T(DPP)T.。 共面噻吩取代的DPP部分充当捐赠者而不是受体,即使DPP是电子缺陷的核心。 在底门/顶部接触装置架构中,研究了改变噻吩接头数对两个完全不同的特征的性能的影响。 PNDI-T(DPP)T呈现单极p型行为,平均空穴迁移率为0.02cm(2)V-1 s(-1),而PNDI-DPP表现出平均电子和孔迁移率为5.7 x 10的amipolar运输 (-3)和1.6×10(-3)cm(2)V-1 s(-1)。 此外,基于两种聚合物的OFETS显示出良好的空气稳定性,在环境条件下储存超过3个月后的可忽略变化。

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  • 来源
    《RSC Advances》 |2015年第25期|共8页
  • 作者单位

    Capital Normal Univ Dept Chem Beijing Key Lab Opt Mat &

    Photon Devices Beijing 100048 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Chinese Acad Sci Inst Chem Beijing Natl Lab Mol Sci Beijing 100190 Peoples R China;

    Capital Normal Univ Dept Chem Beijing Key Lab Opt Mat &

    Photon Devices Beijing 100048 Peoples R China;

    Capital Normal Univ Dept Chem Beijing Key Lab Opt Mat &

    Photon Devices Beijing 100048 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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