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Additive-Free Dispersion of Single-Walled Carbon Nanotubes and Its Application for Transparent Conductive Films

机译：单壁碳纳米管的无添加剂分散体及其在透明导电膜中的应用

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摘要

A good dispersion of single-walled carbon nanotubes (SWCNTs) in liquid media is a prerequisite to fulfill many of their applications. This contribution reports an efficient approach to additive-free dispersion of SWCNTs with the aid of functionalized carbonaceous byproducts (CBs, e.g., amorphous carbon, carbon nanoparticles, and carbonaceous fragments) in SWCNT products. SWCNT bundles are treated by oleum intercalation and nitric acid oxidation in sequence, which leads to the selective functionalization of the CBs while the structure and properties of the SWCNTs are well preserved. These functionalized CBs can improve the subsequent dispersion of SWCNTs and the majority of SWCNTs in the suspension are present in small bundles or individually. Moreover, SWCNT transparent conductive films (TCFs) are fabricated by using these suspensions. The SWCNT TCFs obtained can achieve a low sheet resistance of 76 and 133 Ωsq~(-1), with optical transmittance of 82% and 90% at 550 nm, respectively.
机译：单壁碳纳米管（SWCNT）在液体介质中的良好分散是实现其许多应用的先决条件。该贡献报告了在SWCNT产品中借助官能化的碳质副产物（CB，例如无定形碳，碳纳米颗粒和碳质碎片）实现SWCNT无添加剂分散的有效方法。依次通过发烟硫酸插入和硝酸氧化处理SWCNT束，这导致了CB的选择性功能化，而SWCNT的结构和性能得到了很好的保留。这些功能化的CB可以改善SWCNT的后续分散，并且悬浮液中的大多数SWCNT以小束或单独存在。而且，通过使用这些悬浮液来制造SWCNT透明导电膜（TCF）。所获得的SWCNT TCF可以实现76和133Ωsq〜（-1）的低薄层电阻，在550 nm处的透光率分别为82％和90％。

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  • 来源
    《Advanced Functional Materials》 |2011年第12期|p.2330-2337|共8页
  • 作者

    Wen-Bin Liu; Songfeng Pei; Jinhong Du; Bilu Liu; Libo Cao; Yang Su; Chang Liu; Hui-Ming Cheng;

  • 作者单位

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

    Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences 72 Wenhua Road, Shenyang 110016, P. R. China;

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