Aluminum Nanowire Arrays via Directed Assembly

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• 作者：Nathan T. Nesbitt ; Juan M. Merlo ; Aaron H. Rose ; Yitzi M. Calm ; Krzysztof Kempa ; Michael J. Burns ; Michael J. Naughton
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：November 11, 2015
• 年：2015
• 卷：15
• 期：11
• 页码：7294-7299
• 全文大小：423K
• ISSN：1530-6992

文摘

Freestanding and vertically-oriented metal nanowire arrays have potential utility in a number of applications, but presently lack a route to fabrication. Template-based techniques, such as electrodeposition into lithographically defined nanopore arrays, have produced well-ordered nanowire arrays with a maximum pitch of about 2 渭m; such nanowires, however, tend to cluster due to local attractive forces. Here, we modify this template fabrication method to produce well-ordered, vertically-oriented, freestanding Al nanowire arrays, etched from an underlying Al substrate, with highly tunable pitch. In addition, optical measurements demonstrated that the nanowires support the propagation of surface plasmon polaritons.