Oh Youngseok, Suh Daewoo, Kim Young-Jin, Han Chang-Soo, Baik Seunghyun
SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Korea.
J Nanosci Nanotechnol. 2011 Jan;11(1):489-93. doi: 10.1166/jnn.2011.3241.
Carbon nanotubes have received attention as alternative materials to indium tin oxide for application in transparent conductive films. Their electrical conductivity, however, still has to be improved. In this study, a layer-by-layer self-assembly process was demonstrated using nano-silver-coated carbon nanotubes, which help improve electrical conductivity. The method was based on the pi-pi interaction between the side walls of the carbon nanotubes and nano-silver clusters that were functionalized with benzyl mercaptan. The self-assembled nano-silver cluster monolayer on the surface of the nanotubes can reduce the interfacial contact resistance, thereby leading to high conductivity at a high transparency. The compound was characterized via scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman spectroscopy, and the four-point probe method.
碳纳米管作为氧化铟锡在透明导电薄膜应用中的替代材料受到了关注。然而，它们的电导率仍有待提高。在本研究中，展示了一种使用纳米银包覆碳纳米管的逐层自组装过程，这有助于提高电导率。该方法基于碳纳米管侧壁与用苄基硫醇功能化的纳米银簇之间的π-π相互作用。纳米管表面自组装的纳米银簇单层可以降低界面接触电阻，从而在高透明度下实现高导电性。通过扫描电子显微镜（SEM）、X射线光电子能谱（XPS）、X射线衍射（XRD）、拉曼光谱和四点探针法对该化合物进行了表征。
