Assembly of graphene nanosheets and SiO2 nanoparticles towards transparent, antireflective, conductive, and superhydrophilic multifunctional hybrid films.
Assembly of graphene nanosheets and SiO2 nanoparticles towards transparent, antireflective, conductive, and superhydrophilic multifunctional hybrid films.
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DOI：
10.1002/chem.201202494
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
Jiayi Zhu;Ligang Xu;Junhui He
中科院分区：
文献类型：
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作者：
Jiayi Zhu;Ligang Xu;Junhui He
报道了一种通过还原氧化石墨烯（RGO）纳米片和SiO2纳米颗粒层层组装制备透明、减反射、导电和超亲水多功能杂化膜的新方法。利用透射电子显微镜、紫外/维斯吸收光谱、拉曼光谱、原子力显微镜、接触角/界面系统和四探针等手段对RGO纳米片、SiO2纳米颗粒和薄膜进行了表征。结果表明，石墨烯/SiO2杂化膜的透过率比RGO膜有显著提高。杂化膜的光学、电学和润湿性质可以通过合理设计膜结构和改变LbL组装的循环次数来控制。所制备的石墨烯/SiO2杂化薄膜具有透明、导电、超亲水等特性，并具有良好的抗反射、抗静电和防雾性能。这种优异的性能是由于RGO纳米片的导电性和由SiO（2）纳米颗粒衍生的超亲水减反射表面的结合。
A new approach for the fabrication of transparent, antireflective, conductive and superhydrophilic multifunctional hybrid films through the layer-by-layer (LbL) assembly of reduced graphene oxide (RGO) nanosheets and SiO(2) nanoparticles is reported. The RGO nanosheets, SiO(2) nanoparticles and films were characterized by means of transmission electron microscopy, UV/Vis absorption spectrophotometry, Raman spectroscopy, atomic force microscopy, contact angle/interface system, and a four-point probe. It was found that the graphene/SiO(2) hybrid films exhibited a significant increase in transmittance as compared with RGO films. The optical, electronic and wetting properties of hybrid films could be manipulated by rational design of the film structure and variation of the cycle number of the LbL assembly. The obtained transparent, conductive, and superhydrophilic graphene/SiO(2) hybrid films showed excellent antireflective, antistatic, and antifogging behaviors. The remarkable performance could be attributed to the combination of electrical conductivity of RGO nanosheets and superhydrophilic antireflective surface derived from SiO(2) nanoparticles.