期刊
NANO LETTERS
卷 15, 期 11, 页码 7294-7299出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b02408
关键词
Metal nanowires; anodized aluminum oxide (AAO); plasmonics
类别
资金
- National Science Foundation Graduate Research Fellowship [DGE-1258923]
- W. M. Keck Foundation
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 mu 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.
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