A highly conductive, flexible, transparent composite electrode based on the lamination of silver nanowires and polyvinyl alcohol
A highly conductive, flexible, transparent composite electrode based on the lamination of silver nanowires and polyvinyl alcohol
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DOI：
10.1039/c4tc01484g
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发表时间：
2014-01-01
影响因子：
6.4
通讯作者：
Zhang, Mei
中科院分区：
文献类型：
--
作者：
He, Xin;He, Ruihui;Zhang, Mei
在这项研究中，一个旋涂法生产银纳米线薄膜柔性聚对苯二甲酸乙二醇酯基板上证明。为了改善银纳米线薄膜固有的导电均匀性差的问题，降低其表面粗糙度，采用机械层压技术制备了基于银纳米线网络和聚乙烯醇的复合薄膜。研究了机械压力和层压时间对复合膜光电性能的影响。通过使用30 MPa的压力将复合层层压10 min，在基底上建立了银纳米线网络的稳定电通道。测量了银纳米线-聚乙烯醇膜在550 nm波长下的透射率为86.9%，薄层电阻为0.75 Ω sq（-1），雾度为7.1%。此外，复合膜的表面粗糙度较低，在300次弯曲循环后仍具有稳定的导电性，同时由于银纳米线与聚乙烯醇之间的紧密接触，纳米线与基底的弱粘附性得到改善。
In this study, a spin-coating method is demonstrated for producing silver nanowire films on flexible polyethylene terephthalate substrates. To improve the inherent, poor uniformity in conductivity and lower the high surface roughness of silver nanowire films, a composite film based on a silver nanowire network and polyvinyl alcohol was fabricated by a mechanical lamination technique. The effects of mechanical pressure and lamination time on the photoelectric characterization of the composite films were investigated. Stable electrical channels of a silver nanowire network were established on the substrate by laminating the composite layers using a pressure of 30 MPa for 10 min. A transmittance of 86.9% at a wavelength of 550 nm with a sheet resistance of 0.75 Omega sq(-1) and a haze of 7.1% were measured for the silver nanowire-polyvinyl alcohol film. Furthermore, the composite film also showed low surface roughness, stable conductivity after 300 bending cycles, as well as the improved weak adhesion of nanowires to the substrate due to the compact contact between silver nanowires and polyvinyl alcohol.