TRANSPARENT ELECTRODE INCLUDING SILVER NANOWIRE PATTERNED LAYER AND GRAPHENE LAYER, AND METHOD FOR MAKING SAME

摘要

A transparent electrode according to the present invention includes a substrate, a graphene layer formed on the substrate and a silver (Ag) nanowire patterned layer formed on the graphene layer. A method for making the transparent electrode containing a patterned Ag nanowire and reduced graphene oxide according to the present invention includes the steps of: (a) forming the graphene layer on the substrate; (b) patterning a surface of the graphene layer formed on the substrate using a photoresist; (c) forming the Ag nanowire patterned layer by coating the patterned graphene layer with an Ag nanowire solution; and (d) removing the photoresist. The transparent electrode according to the present invention includes: the graphene layer having a stable sp^2-hybridized carbon structure formed by the reduction of the graphene oxide to have superior electrical and mechanical characteristics; and the Ag nanowire patterned layer. Accordingly, the transparent electrode has superior electrical conductivity and permeability enough to replace an existing transparent metal oxide electrode such as an ITO or FTO electrode, shows uniform permeability across the entire surface of the transparent electrode, and arbitrarily controls an aperture ratio. Also, according to the method for making the transparent electrode of the present invention, since the transparent electrode can be made at low temperature and atmospheric pressure through the entire solution-only process, it is possible to form the transparent electrode on a flexible substrate such as a plastic substrate, the transparent electrode having the above-mentioned superior characteristics as well as advantages such as reduction of manufacturing costs, simplification of a manufacturing process, and easiness in manufacturing a large-area electrode. Thus, the transparent electrode of the present invention may be utilized for manufacturing various kinds of flexible devices.;COPYRIGHT KIPO 2016