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ACS Nano. 2010 Apr 27;4(4):2249-55. doi: 10.1021/nn9018398.

Fabrication and characterization of gold-polymer nanocomposite plasmonic nanoarrays in a porous alumina template.

Author information

1
Department of Electrical Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, USA.

Abstract

A facile, cost-effective, and manufacturable method to produce gold-polymer nanocomposite plasmonic nanorod arrays in high-aspect-ratio nanoporous alumina templates is reported, where the formation of gold nanoparticles and the polymerization of a photosensitive polymer by ultraviolet light are simultaneously performed. Transverse mode coupling within a two-dimensional array of the nanocomposite rods results in a progression of resonant modes in the visible and infrared spectral regions when illuminated at normal incidence, a phenomenon previously observed in nanoarrays of solid gold rods in an alumina template. Finite element full-wave analysis in a three-dimensional computational domain confirms our hypothesis that nanoparticles, arranged in a columnar structure, will show a response similar to that of solid gold rods. These studies demonstrate a new simple method of plasmonic nanoarray fabrication, apparently obviating the need for a cumbersome electrochemical process to grow nanoarrays.

PMID:
20384322
DOI:
10.1021/nn9018398
[Indexed for MEDLINE]

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