Abstract A critical and practical issue in employing low dimensional nanomaterials as transparent conducting electrodes (TCEs) is the simple and effectual cleaning of the nanomaterials; the presence of contaminants increases the contact resistance at the interface region in practical applications. In this study, various cleaning methods are examined to remove surface contaminants on RuO2 nanosheets (NSs), which are the promising materials for TCEs. The Ar gas cluster ion beam (GCIB) sputtering technique can effectively remove organic surface contaminants, although it has critical drawbacks in the mass production. The simple deionized water treatment can provide satisfactory cleaning performance, which is comparable with that of the Ar GCIB sputtering method. Other methods such as solution-based treatments that use ethanol and chloroform and the heating method do not provide a comparable cleaning performance. The conductive atomic force microscopy demonstrates highly increased conductivity of water-cleaned RuO2 NS films at the nanoscale. This study proposes a practical method for the cleaning of RuO2-based nanomaterials for their application as TCEs and emphasizes their significance of the cleaning process to achieve a higher performance for TCEs based on low dimensional nanomaterials.

中文翻译：

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柔性透明导电电极用RuO2纳米片薄膜的简单有效清洗方法

摘要 采用低维纳米材料作为透明导电电极（TCE）的一个关键和实际问题是纳米材料的简单有效清洁；在实际应用中，污染物的存在会增加界面区域的接触电阻。在这项研究中，研究了各种清洁方法以去除 RuO2 纳米片 (NSs) 上的表面污染物，这是 TCE 的有前途的材料。Ar气体簇离子束（GCIB）溅射技术可以有效去除有机表面污染物，尽管它在大规模生产中存在严重缺陷。简单的去离子水处理可以提供令人满意的清洁性能，可与 Ar GCIB 溅射方法相媲美。其他方法，例如使用乙醇和氯仿的基于溶液的处理以及加热方法，无法提供可比的清洁性能。导电原子力显微镜表明，在纳米尺度上，水清洗过的 RuO2 NS 薄膜的导电性大大增加。本研究提出了一种用于清洁基于 RuO2 的纳米材料作为 TCE 的实用方法，并强调了清洁过程对基于低维纳米材料的 TCE 实现更高性能的重要性。