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首页> 外文期刊>Advanced Functional Materials >Fullerene Additives Convert Ambipolar Transport to p-Type Transport while Improving the Operational Stability of Organic Thin Film Transistors
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Fullerene Additives Convert Ambipolar Transport to p-Type Transport while Improving the Operational Stability of Organic Thin Film Transistors

机译：富勒烯添加剂可将双极传输转换为p型传输，同时提高有机薄膜晶体管的操作稳定性

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摘要

Many high charge carrier mobility () active layers within organic field-effect transistor (OFET) configurations exhibit non-linear current-voltage characteristics that may drift with time under applied bias and, when applying conventional equations for ideal FETs, may give inconsistent values. This study demonstrates that the introduction of electron deficient fullerene acceptors into thin films comprised of the high-mobility semiconducting polymer PCDTPT suppresses an undesirable double-slope in the current-voltage characteristics, improves operational stability, and changes ambipolar transport to unipolar transport. Examination of other high polymers shows general applicability. This study also shows that one can further reduce instability by tuning the relative electron affinity of the polymer and fullerene by creating blends containing different fullerene derivatives and semiconductor polymers. One can obtain hole values up to 5.6 cm(2) V-1 s(-1) that are remarkably stable over multiple bias-sweeping cycles. The results provide a simple, solution-processable route to dictate transport properties and improve semiconductor durability in systems that display similar non-idealities.
机译：有机场效应晶体管（OFET）配置中的许多高电荷载流子迁移率（）有源层表现出非线性电流-电压特性，该非线性电流-电压特性可能会在施加偏压的情况下随时间漂移，并且当对理想FET应用常规公式时，可能会给出不一致的值。这项研究表明，将缺电子的富勒烯受体引入由高迁移率半导体聚合物PCDTPT组成的薄膜中，可以抑制电流-电压特性中不希望的双斜率，提高操作稳定性，并将双极性传输转换为单极性传输。其他高聚物的检验显示出普遍的适用性。这项研究还表明，通过创建含有不同富勒烯衍生物和半导体聚合物的混合物，可以通过调节聚合物和富勒烯的相对电子亲和力来进一步降低不稳定性。可以获得高达5.6 cm（2）V-1 s（-1）的孔值，该值在多个偏置扫描周期内都非常稳定。结果提供了一种简单的可溶液处理的路线，以决定传输性能并改善显示出类似非理想性的系统中的半导体耐久性。

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  • 来源
    《Advanced Functional Materials》 |2016年第25期|4472-4480|共9页
  • 作者

    Ford Michael J.; Wang Ming; Phan Hung; Thuc-Quyen Nguyen; Bazan Guillermo C.;

  • 作者单位

    Univ Calif Santa Barbara, Dept Mat, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA;

    Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA;

    Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA;

    Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA;

    Univ Calif Santa Barbara, Dept Mat, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA|Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA;

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

    bias stress; high mobility; organic field-effect transistors; stable; semiconductor blends;

    机译：偏压;高迁移率;有机场效应晶体管;稳定;半导体共混物;

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