Composition of Copper Nanowires and Preparation of Transparent Conductive Film by Intense Pulse Light Sintering

Abstract

Copper nanowires （CuNWs） with low manufacture price and high electrical conductivity have been successfully synthesized by a simple hydrothermal process. The molecular weight of amine, which was used as surfactant, largely influenced the morphology of synthesis Cu products. As-synthesized CuNWs were coated onto substrate and treated by intense pulse light （IPL） technique in ambient atmosphere. The instantaneous deoxidization and decomposition organics on the surface of the CuNWs contributed to the formation of transparent conductive film. A film with low sheet resistance of 13.4 Ω/□ and high transmittance of 79％ was obtained. Furthermore, stretchable conductor was also realized by coating the CuNWs onto flexible substrate and following IPL sintering treatment. ［doi:10.2320/jinstmet.J2017013］