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On the correlation between surface morphology and electron work function of indium tin oxide

机译:氧化铟锡的表面形态与电子功函数的相关性

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摘要

The electron work function (EWF) is an important parameter of a semiconductor. The understanding of the correlation between the EWF and surface morphology is of much significance for revealing related photoelectric mechanisms. In this study, the surface of indium tin oxide (ITO) was treated by chemical corrosion or absorption of copper phthalocyanine molecules, and their changes in EWF were systematically investigated using scanning Kelvin probe. The decrease of the EWF with the increase of surface roughness was found. Based on a microcapacitor model, the correlation between the EWF and surface microstructures was built up, which was well consistent with the experimental results. These data are of help for improving the photoelectric behaviors of ITO-based devices by adjusting surface/interface structures.
机译:电子功函数(EWF)是半导体的重要参数。了解EWF与表面形态之间的相关性对于揭示相关的光电机制具有重要意义。在这项研究中,通过化学腐蚀或吸收铜酞菁分子对铟锡氧化物(ITO)的表面进行了处理,并使用扫描开尔文探针系统地研究了它们在EWF中的变化。发现EWF随表面粗糙度的增加而降低。基于微电容器模型,建立了电动势与表面微观结构的相关性,与实验结果吻合良好。这些数据有助于通过调整表面/界面结构来改善基于ITO的器件的光电性能。

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  • 来源
    《Journal of Applied Physics》 |2012年第12期|p.123714.1-123714.6|共6页
  • 作者单位

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China,College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun 130025, People's Republic of China;

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China;

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China;

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China;

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China;

    Aeronautic Science Key Laboratory for Aeronautic Testing and Evaluation, School of Materials Science and Engineering, Nanchang Hongkong University, Nanchang 330063, People's Republic of China;

    College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun 130025, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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