Abstract In this study, we report a facile electrical conductivity improvement method for poly (3,4-ethylenedioxythiophene):poly (4-styrenesulfonate) (PEDOT:PSS), which is one of the most widely studied conductive polymers and used for many electronic applications. From our study, we successfully demonstrated that simple hydroquinone (HQ) addition to pristine PEDOT:PSS aqueous solution can dramatically increase the conductivity of PEDOT:PSS thin film from 0.7 S/cm to 1394 S/cm even without removal of an insulator-like PSS from coated PEDOT:PSS thin film. We demonstrated that this superior conductivity enhancement without PSS removal is originated from promoted phase separation between conductive PEDOT and insulating PSS after HQ addition which acts as a proton (H+) donor for PEDOT:PSS. Due to our conductivity enhancement method excluding PSS-removal, high work-function property of PEDOT:PSS is also well preserved which is highly crucial for optoelectronic device application of conductive PEDOT:PSS as a transparent electrode.

中文翻译：

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用于增强 PEDOT 导电性的导电通道形成：具有高功函数的 PSS

摘要 在这项研究中，我们报告了一种简便的导电性改进方法聚（3,4-亚乙基二氧噻吩）：聚（4-苯乙烯磺酸盐）（PEDOT：PSS），它是研究最广泛的导电聚合物之一，用于许多电子产品。应用程序。从我们的研究中，我们成功地证明了简单的氢醌 (HQ) 添加到原始 PEDOT:PSS 水溶液中可以显着增加 PEDOT:PSS 薄膜的电导率，从 0.7 S/cm 到 1394 S/cm，即使不去除类似绝缘体的来自涂层 PEDOT:PSS 薄膜的 PSS。我们证明了这种不去除 PSS 的优异导电性增强源于在 HQ 添加后促进导电 PEDOT 和绝缘 PSS 之间的相分离，后者充当 PEDOT:PSS 的质子 (H+) 供体。