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Effect of molecular ordering in active layer on organic thin-film transistor performance

机译:活性层中分子有序化对有机薄膜晶体管性能的影响

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摘要

We investigate the effect of molecular ordering in the semiconductor of inverted staggered-type organic thin-film transistors (OTFTs) on device parameters. Molecular ordering is controlled by modifying the gate insulator with self-assembled monolayers and clarified by X-ray diffraction analysis. The reduction in the density of free carriers in a semiconductor with the alkyl-modified surface reduces off-current (IOFF) and increases contact resistance ( RC). In contrast, IOFF increases and RC decreases for a phenyl-modified surface. Ultraviolet photoemission studies revealed that differences in the molecular ordering and the surface dipole moment caused by the insulator surfaces are crucial for device parameters for OTFTs. (C) 2016 The Japan Society of Applied Physics
机译:我们研究了反向交错型有机薄膜晶体管(OTFT)的半导体中的分子有序化对器件参数的影响。分子有序性是通过用自组装单层修饰栅绝缘体来控制的,并通过X射线衍射分析来阐明。具有烷基改性表面的半导体中的自由载流子密度的降低降低了关断电流(IOFF)并增加了接触电阻(RC)。相反,对于苯基改性的表面,IOFF增加而RC降低。紫外光发射研究表明,由绝缘体表面引起的分子有序性和表面偶极矩的差异对于OTFT的器件参数至关重要。 (C)2016年日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2016年第3期|030301.1-030301.4|共4页
  • 作者单位

    Univ Tsukuba, Div Mat Sci, Tsukuba, Ibaraki 3058573, Japan;

    NIMS, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan;

    Univ Tsukuba, Div Mat Sci, Tsukuba, Ibaraki 3058573, Japan|Univ Tsukuba, Tsukuba Res Ctr Interdisciplinary Mat Sci TIMS, Tsukuba, Ibaraki 3058571, Japan;

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