Large-scale synthesis of defect-free silver nanowires by electrodeless deposition

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• 作者：Zhongai Hu ; Chao Kong ; Yanxia Han ; Hongxiao Zhao ; Yuying Yang ; Hongying Wu
• 关键词：Silver ; Nanowire ; Synthesis ; Ethylene glycol
• 刊名：Materials Letters
• 出版年：2007
• 出版时间：July 2007
• 年：2007
• 卷：61
• 期：18
• 页码：3931-3934
• 全文大小：626 K

文摘

We report a new method that generates high-density, long aspect ratio and large-area silver nanowire arrays within the pores of anodic aluminum oxide (AAO) membrane by reducing silver nitrate with ethylene glycol. The freestanding and defect-free silver nanowires can be obtained at high yields. In a typical procedure, the as-prepared silver nanowires have a mean diameter of 53 nm. It is found out that both temperature and reaction time are important factors in determining the morphology and aspect ratios of nanowires. Lower temperature and longer time are favorable to form polycrystalline silver nanowires with high uniformity and aspect ratios.