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Low electrical resistivity of a graphene-AgNHPs based ink with a new processing method

机译：具有新的加工方法的石墨烯-AgNHPS油墨的低电阻率

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摘要

The purification and separation of nano-Ag particles is difficult because of the small size, it restricts the applications of nano-Ag. In this study, the AgNHPs solution was purified and separated with a membrane separation-centrifugation cleaning method, for use as the ink of printed electronics. Meanwhile, we prepared inkjet-printed patterns of conductive inks consisting of AgNHPs and graphene (GE) in different contents. It is found that high dispersity and low electrical resistivity of AgNHPs inks can be obtained by using membrane separation-centrifugation cleaning method. The AgNHPs particles show excellent dispersion and the electrical resistivity of the AgNHPs solution is 11.2 x 10(-6) Omega cm at 150 degrees C, it increases the electrical conductivity of GE-AgNHP. It is also found that GE can significantly improve the electrical conductivity of the patterns when sintering is done at relatively low temperatures. When the GE content is 0.15 mg mL(-1), the resistivity is the lowest. For instance, when sintering is done at 150 degrees C, the resistivity is 2.5 x 10(-6) Omega cm that is 13% of that of the AgNHPs conductive ink; after sintering at 50 degrees C, this ratio is 2%. This study on GE-AgNHPs conductive inks sintered at low temperatures should further the development of flexible touch screens.
机译：纳米Ag颗粒的纯化和分离由于尺寸小，因此较小，它限制了纳米Ag的应用。在该研究中，纯化AgNHPS溶液并用膜分离离心清洁方法分离，用作印刷电子的油墨。同时，我们在不同内容物中制备了由Agnhps和石墨烯（Ge）组成的导电油墨的喷墨印刷图案。发现通过使用膜分离离心清洁方法可以获得高分散性和AgNHPS油墨的低电阻率。 AgNHPS颗粒显示出优异的分散体，AgNHPS溶液的电阻率在150℃下为11.2×10（6）ΩCm，增加Ge-AgnHP的导电性。还发现，当烧结在相对低温下进行时，GE可以显着提高图案的电导率。当GE含量为0.15mg ml（-1）时，电阻率是最低的。例如，当烧结在150℃下完成时，电阻率为2.5×10（ - 6）ωcm，其是Agnhps导电油墨的13％;在烧结50℃后，该比率为2％。该研究在低温下烧结的GE-AGNHPS导电油墨应该进一步发展柔性触摸屏。

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  • 来源
    《RSC Advances》 |2017年第25期|共8页
  • 作者

    Liu Piao; Tang Quanzhong; Liu Hua; Lu Anxian;

  • 作者单位

    Cent S Univ Sch Mat Sci &

    Engn Changsha 410083 Hunan Peoples R China;

    Hunan LEED Elect Ink Co Ltd Zhuzhou 412000 Peoples R China;

    Hunan LEED Elect Ink Co Ltd Zhuzhou 412000 Peoples R China;

    Cent S Univ Sch Mat Sci &

    Engn Changsha 410083 Hunan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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