A Rapid Synthesis of High Aspect Ratio Silver Nanowires for High‐Performance Transparent Electrodes

Abstract

AbstractA rapid, simple and cost‐effective polyol method has been developed for the synthesis of silver nanowires with high aspect ratio and high purity. The aspect ratios of the silver nanowires as high as ca. 1000 (average length 40 µm and some even as long as 80 µm, diameter 50–100 nm) were obtained via optimizing the reaction conditions. Transparent electrodes with excellent optoelectronic performances (optical transmittance of 90%, sheet resistance of 23.2 Ω/□ and optical transmittance of 87%, sheet resistance of 19.7 Ω/□) comparable to commercial ITO were fabricated via simple spin coating the resulting silver nanowires onto the glass substrates. The high optoelectronic performances and the facile all‐solution process of the as‐prepared transparent electrodes render them rather promising candidates for use in cost‐effective large‐area optoelectronic devices.