Effect of gold coating on sensitivity of rhombic silver nanostructure array

Zhu, Shaoli and Zhou, Wei (2009) Effect of gold coating on sensitivity of rhombic silver nanostructure array. Plasmonics, 4 4: 303-306. doi:10.1007/s11468-009-9106-2

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Author Zhu, Shaoli
Zhou, Wei
Title Effect of gold coating on sensitivity of rhombic silver nanostructure array
Journal name Plasmonics   Check publisher's open access policy
ISSN 1557-1955
1557-1963
Publication date 2009-12-01
Sub-type Article (original research)
DOI 10.1007/s11468-009-9106-2
Open Access Status File (Author Post-print)
Volume 4
Issue 4
Start page 303
End page 306
Total pages 4
Place of publication New York, NY, U.S.A.
Publisher Springer New York
Language eng
Formatted abstract
The sensitivity is the most important parameter in the sensing field. Effort was made to study the effect of gold coating on the sensitivity of rhombic silver nanostructure array through numerical simulation using the discrete dipole approximation method. This study shows that thickness of the gold coating can be varied to tune the sensitivity of the rhombic silver nanostructure array. The Au–Ag nanostructure array is found to possess the maximum refractive index sensitivity of 714 nm/RIU when thickness of gold is 20 nm, thickness of silver is 25 nm, and refractive index of the medium is around 1.35. The condition for achieving the maximum refractive index sensitivity can be used for detecting many species of biomolecules and drugs in the future.
Keyword Sensitivity
Rhombic
Spectroscopy
Discrete dipole approximation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Author's prepress title: "Effect of gold-coating on the sensitivity of the rhombic silver nanostructures array".

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 8 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 11 Mar 2011, 22:22:46 EST by Dr Shaoli Zhu on behalf of Aust Institute for Bioengineering & Nanotechnology