Fabrication of gold nanorod arrays by templating from porous alumina

Dusan Losic; Joe G. Shapter; James G. Mitchell; Nicolas H. Voelcker

doi:10.1088/0957-4484/16/10/049

Fabrication of gold nanorod arrays by templating from porous alumina

Dusan Losic, Joe G. Shapter, James G. Mitchell, Nicolas H. Voelcker

Research output: Contribution to journal › Article › Research › peer-review

63 Citations (Scopus)

Abstract

A simple procedure for fabrication of gold films with nanorod arrays is described. The method is based on thermal evaporation of gold onto a porous alumina (PA) membrane used as a template. The gold films were obtained after removing the template and characterized using scanning electron microscopy, atomic force microscopy and ultraviolet-visible spectrophotometry. The prepared gold films are composed of arrays of sharp (<20 nm at apex) rod-shaped gold nanostructures. These structures closely follow the organization and distribution of pores of the PA template. The length of the gold nanostructures is estimated to range from 300 nm to more than 1000 nm. It was found that their length is influenced by the size of the pores in the PA and the temperature of the PA during gold evaporation. Spectrophotometric characterization shows that the prepared gold films exhibit a surface plasmon resonance absorption peak located between 525 and 540 nm.

Original language	English
Pages (from-to)	2275-2281
Number of pages	7
Journal	Nanotechnology
Volume	16
Issue number	10
DOIs	https://doi.org/10.1088/0957-4484/16/10/049
Publication status	Published - 1 Oct 2005
Externally published	Yes

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title = "Fabrication of gold nanorod arrays by templating from porous alumina",

abstract = "A simple procedure for fabrication of gold films with nanorod arrays is described. The method is based on thermal evaporation of gold onto a porous alumina (PA) membrane used as a template. The gold films were obtained after removing the template and characterized using scanning electron microscopy, atomic force microscopy and ultraviolet-visible spectrophotometry. The prepared gold films are composed of arrays of sharp (<20 nm at apex) rod-shaped gold nanostructures. These structures closely follow the organization and distribution of pores of the PA template. The length of the gold nanostructures is estimated to range from 300 nm to more than 1000 nm. It was found that their length is influenced by the size of the pores in the PA and the temperature of the PA during gold evaporation. Spectrophotometric characterization shows that the prepared gold films exhibit a surface plasmon resonance absorption peak located between 525 and 540 nm.",

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AU - Losic, Dusan

AU - Shapter, Joe G.

AU - Mitchell, James G.

AU - Voelcker, Nicolas H.

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AB - A simple procedure for fabrication of gold films with nanorod arrays is described. The method is based on thermal evaporation of gold onto a porous alumina (PA) membrane used as a template. The gold films were obtained after removing the template and characterized using scanning electron microscopy, atomic force microscopy and ultraviolet-visible spectrophotometry. The prepared gold films are composed of arrays of sharp (<20 nm at apex) rod-shaped gold nanostructures. These structures closely follow the organization and distribution of pores of the PA template. The length of the gold nanostructures is estimated to range from 300 nm to more than 1000 nm. It was found that their length is influenced by the size of the pores in the PA and the temperature of the PA during gold evaporation. Spectrophotometric characterization shows that the prepared gold films exhibit a surface plasmon resonance absorption peak located between 525 and 540 nm.

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Fabrication of gold nanorod arrays by templating from porous alumina

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