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Facile organic surfactant removal of various dimensionality nanomaterials using low-temperature photochemical treatment

机译：使用低温光化学处理去除各种二维纳米材料的容易有机表面活性剂

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摘要

Deep ultraviolet (DUV)-treatment is an efficient method for the removal of high-energy-barrier polymeric or aliphatic organic ligands from nanomaterials. Regardless of morphology and material, the treatment can be used for nanoparticles, nanowires, and even nanosheets. The high-energy photon irradiation from low-pressure mercury lamps or radio frequency (RF) discharge excimer lamps could enhance the electrical conductivity of various nanomaterial matrixes, such as Ag nanoparticles, Bi2Se3 nanosheets, and Ag nanowires, with the aliphatic alkyl chained ligand (oleylamine; OAm) and polymeric ligand (polyvinyl pyrrolidone; PVP) as surfactants. In particular, Ag nanoparticles (AgNPs) that are DUV-treated with polyvinyl pyrrolidone (PVP) for 90min (50-60 degrees C) exhibited a sheet resistance of 0.54 (-1), while thermal-treated AgNP with PVP had a sheet resistance of 7.5 k (-1) at 60 degrees C. The simple photochemical treatment on various dimensionality nanomaterials will be an efficient sintering method for flexible devices and wearable devices with solution-processed nanomaterials.
机译：深紫外（DUV） - 治疗是从纳米材料中除去高能阻隔聚合物或脂族有机配体的有效方法。无论形态和材料如何，治疗可用于纳米颗粒，纳米线，甚至纳米晶片。来自低压汞灯或射频（RF）放电准分灯的高能光子照射可以增强各种纳米材料，例如Ag纳米颗粒，Bi2Se3纳米片和Ag纳米线的电导率，脂族烷基链配体（ Oxylamine; OAM）和聚合物配体（聚乙烯吡咯烷酮; PVP）作为表面活性剂。特别地，用聚乙烯吡咯烷酮（PVP）对50min（50-60℃）处理的Ag纳米颗粒（AgNP）表现出0.54（-1）的薄层电阻，而具有PVP的热处理的AgNP具有薄层电阻在60摄氏度下为7.5k（-1）。在各种维度纳米材料上的简单光化学处理将是柔性装置和具有溶液加工纳米材料的可穿戴装置的有效烧结方法。

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  • 来源
    《RSC Advances》 |2019年第2期|共8页
  • 作者

    Hwang Chahwan; Heo Jae Sang; Kim Kyung-Tae; Kang Yeo Kyung; Choi Byungdoo; Kim Yong-Hoon; Facchetti Antonio; Park Sung Kyu; Kim Myung-Gil;

  • 作者单位

    Chung Ang Univ Dept Chem Seoul 06980 South Korea;

    Chung Ang Univ Sch Elect &

    Elect Engn Seoul 06980 South Korea;

    Chung Ang Univ Sch Elect &

    Elect Engn Seoul 06980 South Korea;

    Chung Ang Univ Dept Chem Seoul 06980 South Korea;

    Chung Ang Univ Dept Chem Seoul 06980 South Korea;

    Sungkyunkwan Univ Sch Adv Mat Sci &

    Engn SKKU Adv Inst Nanotechnol SAINT Suwon 16419 South Korea;

    Northwestern Univ Dept Chem Mat Res Ctr 2145 Sheridan Rd Evanston IL 60208 USA;

    Chung Ang Univ Sch Elect &

    Elect Engn Seoul 06980 South Korea;

    Chung Ang Univ Dept Chem Seoul 06980 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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