Graphene−Silica Composite Thin Films as Transparent Conductors

作者：Supinda Watcharotone, Dmitriy A. Dikin, Sasha Stankovich, Richard D. Piner, Inhwa Jung, Geoffrey Dommett, Guennadi Evmenenko, Shang-En Wu, Shufang Chen, Chuan‐Pu Liu, SonBinh T. Nguyen, Rodney S. Ruoff · 发表于：Nano Letters · 年份：2007 · DOI：10.1021/nl070477+ · 被引用次数：863 · 研究领域：Graphene research and applications、Carbon Nanotubes in Composites、Conducting polymers and applications

Transparent and electrically conductive composite silica films were fabricated on glass and hydrophilic SiOx/silicon substrates by incorporation of individual graphene oxide sheets into silica sols followed by spin-coating, chemical reduction, and thermal curing. The resulting films were characterized by SEM, AFM, TEM, low-angle X-ray reflectivity, XPS, UV-vis spectroscopy, and electrical conductivity measurements. The electrical conductivity of the films compared favorably to those of composite thin films of carbon nanotubes in silica.