石墨烯/氧化锡复合透明导电薄膜的制备及性能

The Preparation and Property of Graphene/Tin Oxide Transparent Conductive Film

以Sn Cl2·2H2O和氧化石墨烯为原料,采用溶胶水热法制备了石墨烯、氧化锡复合物,并在石英玻璃上制备出了Sn O2掺杂石墨烯的薄膜。采用X射线衍射仪(XRD)、扫描电镜(SEM)对薄膜的结构、形貌进行了研究,XRD测试结果表明本实验通过Hummers法成功制备出了氧化石墨烯,通过扫描电镜图片可清晰的观测到石墨烯的层状结构和颗粒状的Sn O2。采用紫外可见光分光光度计、霍尔效应测试仪测试薄膜的透光性和导电性。结果表明,在可见光区薄膜的透光性大于90%,表面方阻为41Ω/,透光导电性能优于商用的FTO玻璃。

Graphene doped tin oxide composites were prepared with SnC12 .2H20 and graphene oxide as rawmaterials with sol-gel method and then spincoated on the quartz glass to manufacture a new transparent conductivefilm. The composite film was characterized with X-ray diffraction （XRD） and scanning electron microscopy （SEM）analysis. XRD results show that the graphene oxide was successfully prepared with Hummers method. The graphenelayers and particulate SnO2 can be clearly observed in SEM photos. The transmittance and conductivity of the thinfilms were tested with ultraviolet visible spectrophotorneter and Hall effect measurement. The results show that thetransmittivity of composite film in visible region is more than 90% and surface square resistance is 41Ω/. Thegraphene/SnO2 film exhibits a higher performance in transparence and conductivity than commercial FTO glass.