Sensitivity of triangular hybrid Au-Ag nanostructure array

Zhu, Shaoli and Zhou, Wei (2010) Sensitivity of triangular hybrid Au-Ag nanostructure array. Journal of Computational and Theoretical Nanoscience, 7 8: 1347-1350. doi:10.1166/jctn.2010.1487

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Author Zhu, Shaoli
Zhou, Wei
Title Sensitivity of triangular hybrid Au-Ag nanostructure array
Journal name Journal of Computational and Theoretical Nanoscience   Check publisher's open access policy
ISSN 1546-1955
1546-1963
Publication date 2010-08-01
Sub-type Article (original research)
DOI 10.1166/jctn.2010.1487
Volume 7
Issue 8
Start page 1347
End page 1350
Total pages 4
Place of publication Valencia, CA, United States
Publisher American Scientific Publishers
Collection year 2011
Language eng
Abstract The sensitivity is one of the most important parameters in the sensing field. Silver triangular nano- structure array is the traditional substrate for detecting the targets. In this paper, we proposed triangular hybrid Au-Ag nanostructure array to be optimized substrate for nanobiosensor. Effort was made to study sensitivity of triangular hybrid Au-Ag nanostructure array through finite-difference time-domain (FDTD) algorithm-based computational numerical calculation method. The extinction efficiency was obtained by theoretical numerical calculation. It is found that the triangular hybrid Au-Ag nanostructure array possess the refractive index sensitivity of 273 nm/RIU when thickness of silver is 40 nm and the gold is 10 nm, and refractive index of the medium is around 1.33. It is higher than the pure silver nanostructure array (242 nm/RIU). Copyright © 2010 American Scientific Publishers. All rights reserved.
Keyword Finite-difference
Sensitivity
Spectroscopy
Time-domain
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Non HERDC
Australian Institute for Bioengineering and Nanotechnology Publications
 
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Created: Fri, 18 Mar 2011, 11:12:28 EST by Melanie Gibbons on behalf of Aust Institute for Bioengineering & Nanotechnology