银纳米线复合柔性透明电极的制备与表征

为了改善银纳米线（AgNWs）柔性透明电极的环境稳定性和机械柔韧性，首先通过溶剂超声、紫外-臭氧照射对衬底表面进行预处理；然后在柔性衬底上，通过旋涂与热处理制备出氧化石墨烯、银纳米线、氧化石墨烯三层复合柔性透明电极。研究结果表明，最优条件下制备出的复合柔性透明电极表面电阻为9.05 Ω，透光率为91%。此外，将复合柔性透明电极放置在大气环境中30 d，复合柔性透明电极表面电阻变化率小于0.4；将复合柔性透明电极在弯曲半径为0.5 cm、弯曲角度为180°条件下弯曲200次，复合柔性透明电极表面电阻变化率小于1.2。该复合柔性透明电极有效地改善了AgNWs电极的导电性、透光性与成膜性，并且具备良好的机械柔韧性与环境稳定性。

Preparation and Characteristics of Composite Flexible Transparent Electrodes of Silver Nanowires

To improve the environmental stability and mechanical flexibility of flexible transparent electrode （FTE） of silver nanowires （AgNWs），the surface of flexible subsrtate was firstly pretreated by solvent ultrasonic and ultraviolet-ozone irradiation. Then，the composite FTE of graphene oxide/AgNWs/graphene oxide was fabricated by spin-coating and thermal treatment on flexible substrate. The result shows that the prepared composite FTE has the sheet resistance of 9.05 Ω and the light transmittance of 91% under optimal conditions. In addition，the change rate of the sheet resistance of the composite FTE is lower than 0.4 when it is placed in the atmosphere for 30 d and it is lower than 1.2 when it is bent 200 times with radius of 0.5 cm and angle of 180°. The composite FTE can effectively improve the conductivity，transmittance and film-forming of AgNWs electrode，and shows excellent mechanical flexibility and environmental stability.