Graphene-silica composite thin films as transparent conductors
Graphene-silica composite thin films as transparent conductors
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DOI：
10.1021/nl070477
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发表时间：
2007-07-01
期刊：
影响因子：
10.8
通讯作者：
Ruoff, Rodney S.
中科院分区：
文献类型：
--
作者：
Watcharotone, Supinda;Dikin, Dmitriy A.;Ruoff, Rodney S.
通过将单个氧化石墨烯片掺入二氧化硅溶胶中，然后进行旋涂、化学还原和热固化，在玻璃和亲水性SiOx/硅基板上制备透明导电复合二氧化硅薄膜。通过SEM、AFM、TEM、低角x射线反射率、XPS、UV-vis光谱和电导率等测试手段对薄膜进行了表征。该薄膜的导电性优于硅碳纳米管复合薄膜。
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.