Abstract
In this study, thin, long, and well-dispersed copper nanowires were obtained via the seed-mediated growth in an organic solvent-based synthesis. The mean length and diameter of nanowire are about 37.7 μm and 46 nm with a high aspect ratio of 820. These wires were used for nanowire conducting films since their relatively long length is advantage in lowering the sheet resistance. Transparent conducting copper nanowire electrodes were prepared by a simple, facile and low cost spray coating method and their properties were characterized. Transparent electrode with optical transmittance and sheet resistance of 90% and 50Ω/sq was obtained. A relatively high value of 300 for the optoeletricial property, σDC/σOp, was obtained, only inferior to silver nanowire-based conducting glass. Moreover, the copper nanowire films maintained their electrical stabilities upon exposed to the ambient over more than one month.