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The Curious Out-of-Plane Conductivity of PEDOT:PSS

机译：PEDOT：PSS的奇怪的平面外电导率

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摘要

For its application as transparent conductor in light-emitting diodes and photovoltaic cells, both the in-plane and out-of-plane conductivity of PEDOT:PSS are important. However, studies into the conductivity of PEDOT:PSS rarely address the out-of-plane conductivity and those that do, report widely varying results. Here a systematic study of the out-of-plane charge transport in thin films of PEDOT:PSS with varying PSS content is presented. To this end, the PEDOT:PSS is enclosed in small interconnects between metallic contacts. An unexpected, but strong dependence of the conductivity on interconnect diameter is observed for PEDOT:PSS formulations without high boiling solvent. The change in conductivity correlates with a diameter dependent change in PEDOT:PSS layer thickness. It is suggested that the order of magnitude variation in out-of-plane conductivity with only a 3-4-fold layer thickness variation can quantitatively be explained on basis of a percolating cluster model.
机译：为了将其用作发光二极管和光伏电池中的透明导体，PEDOT：PSS的面内和面外电导率都很重要。但是，对PEDOT：PSS电导率的研究很少解决面外电导率问题，而进行电导率研究的结果却相差很大。在这里，系统研究了具有不同PSS含量的PEDOT：PSS薄膜中的平面外电荷传输。为此，PEDOT：PSS封装在金属触点之间的小型互连中。对于没有高沸点溶剂的PEDOT：PSS配方，观察到电导率对互连线直径的出乎意料但强烈的依赖性​​。电导率的变化与PEDOT：PSS层厚度随直径的变化相关。建议可以基于渗流聚类模型定量解释仅具有3-4倍层厚变化的面外电导率的数量级变化。

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  • 来源
    《Advanced Functional Materials》 |2013年第46期|5787-5793|共7页
  • 作者

    Kevin van de Ruit; Ilias Katsouras; Dirk Bollen; Ton van Mol; Rene A. J. Janssen; Dago M. de Leeuw; Martijn Kemerink;

  • 作者单位

    Eindhoven University of Technology Department of Applied Physics P.O. Box 513, NL-5600 MB Eindhoven, The Netherlands;

    Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4, NL-9747 AG, Groningen, The Netherlands;

    Agfa-Gevaert N.V., Septestraat 27, 2640 Mortsel, Belgium;

    Hoist Centre/TNO High Tech Campus 48, 5656 AE Eindhoven, The Netherlands;

    Eindhoven University of Technology Department of Applied Physics P.O. Box 513, NL-5600 MB Eindhoven, The Netherlands;

    Max Planck Institut fuer Polymerforschung Ackermannweg 10, D-55128, Mainz, Germany;

    Eindhoven University of Technology Department of Applied Physics P.O. Box 513, NL-5600 MB Eindhoven, The Netherlands;

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