This study reports a novel green chemistry approach to assemble copper‐nanowires/reduced‐graphene‐oxide hybrid coatings onto inorganic and organic supports. Such films are robust and combine sheet resistances (<30 Ω sq⁻¹) and transparencies in the visible region (transmittance > 70%) that are rivalling those of indium–tin oxide. These electrodes are suitable for flexible electronic applications as they show a sheet resistance change of <4% after 10 000 bending cycles at a bending radius of 1.0 cm, when supported on polyethylene terephthalate foils. Significantly, the wet‐chemistry method involves the preparation of dispersions in environmentally friendly solvents and avoids the use of harmful reagents. Such inks are processed at room temperature on a wide variety of surfaces by spray coating. As a proof‐of‐concept, this study demonstrates the successful use of such coatings as electrodes in high‐performance electrochromic devices. The robustness of the electrodes is demonstrated by performing several tens of thousands of cycles of device operation. These unique conducting coatings hold potential for being exploited as transparent electrodes in numerous optoelectronic applications such as solar cells, light‐emitting diodes, and displays.

中文翻译：

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杂化铜纳米线还原石墨烯氧化物涂层：面向（光电）电子的高透明，高导电性和柔性电极的“绿色解决方案”

这项研究报告了一种新颖的绿色化学方法，可将铜纳米线/氧化石墨烯还原杂化涂料组装到无机和有机载体上。这种薄膜坚固耐用，并具有薄层电阻（<30Ωsq ^-1）和可见光区域的透明度（透射率> 70％），可与铟锡氧化物相媲美。这些电极支撑在聚对苯二甲酸乙二酯箔上时，在经过10000次弯曲循环后，其弯曲半径为1.0 cm，其薄层电阻变化<4％，因此适用于柔性电子应用。重要的是，湿化学法涉及在环境友好的溶剂中制备分散体，并避免使用有害试剂。此类油墨在室温下通过喷涂在各种表面上进行处理。作为概念验证，这项研究证明了这种涂层在高性能电致变色设备中作为电极的成功应用。电极的坚固性通过执行数以万计的设备操作循环来证明。