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Electrical Performance of Organic Solar Cells with Additive-Assisted Vertical Phase Separation in the Photoactive Layer

机译:在光敏层中具有添加剂辅助的垂直相分离的有机太阳能电池的电性能

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摘要

Understanding the vertical phase separation of donor and acceptor compounds in organic photovoltaics is requisite for the control of charge transport behavior and the achievement of efficient charge collection. Here, the vertically phase-separated morphologies of poly(3-hexylthiophene):[6,6]phenyl-C61-butyric acid methyl ester (P3HT:PCBM) blend films are examined with transmission electron microtomography, dynamic secondary ion mass spectroscopy, and X-ray photoelectron spectroscopy. The 3D morphologies of the processed films are analyzed and how the solvent additive causes vertical segregation is determined. The photocurrent–voltage characteristics of the vertically segregated blend films are strongly dependent on the 3D morphological organization of the donor and acceptor compounds in the photoactive layer. This dependence is correlated with asymmetric carrier transport at the buried interface and the air surface in the vertically segregated blend films.
机译:了解有机光伏中供体和受体化合物的垂直相分离是控制电荷传输行为和实现有效电荷收集的必要条件。在这里,聚(3-己基噻吩):[6,6]苯基-C61-丁酸甲酯(P3HT:PCBM)共混膜的垂直相分离形态通过透射电子显微镜,动态二次离子质谱和X射线光电子能谱。分析处理过的薄膜的3D形态,并确定溶剂添加剂如何导致垂直偏析。垂直隔离的共混膜的光电流-电压特性在很大程度上取决于光敏层中供体和受体化合物的3D形态组织。这种依赖性与在垂直分离的共混膜中在掩埋界面和空气表面处的不对称载流子传输相关。

著录项

  • 来源
    《Advanced energy materials》 |2014年第2期|1-9|共9页
  • 作者单位

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

    Department of Materials Chemistry and Engineering Japan Science and Technology Agency ERATO Takahara Soft Interfaces Project Kyushu University Fukuoka Japan;

    Department of Energy and Chemical Engineering Incheon National University Incheon Korea;

    Department of Chemical Engineering Pohang University of Science and Technology Pohang Korea;

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

    vertical phase separation; organic solar cells; solvent additives; charge transport; field-effect transistors;

    机译:垂直相分离;有机太阳能电池;溶剂添加剂;电荷传输;场效应晶体管;

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