Tuning optical properties of rhombic hybrid Au-Ag nanoparticles: A discrete dipole approximation calculation

Zhu, Shaoli, Du, Chunlei, Fu, Yongqi and Liu, Aiqun (2009) Tuning optical properties of rhombic hybrid Au-Ag nanoparticles: A discrete dipole approximation calculation. Journal of Computational and Theoretical Nanoscience, 6 5: 1034-1038. doi:10.1166/jctn.2009.1140

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Author Zhu, Shaoli
Du, Chunlei
Fu, Yongqi
Liu, Aiqun
Title Tuning optical properties of rhombic hybrid Au-Ag nanoparticles: A discrete dipole approximation calculation
Journal name Journal of Computational and Theoretical Nanoscience   Check publisher's open access policy
ISSN 1546-1955
Publication date 2009-05-10
Sub-type Article (original research)
DOI 10.1166/jctn.2009.1140
Open Access Status File (Author Post-print)
Volume 6
Issue 5
Start page 1034
End page 1038
Total pages 5
Place of publication United States
Publisher American Scientific Publishers
Language eng
Formatted abstract
Optimization of metallic nanoparticles was presented in this paper by aid of computational numerical calculation. The optical extinction spectra of rhombic hybrid Au-Ag nanoparticles have been calculated by the discrete dipole approximation (DDA) aided design method. Both material and the thickness of the particles can be used to effectively tune localized surface plasmon resonance. On the basis of the calculated extinction spectra, the crucial parameters of the nanostructure arrays such as thickness can be determined. Using this DDA aided approach, a hybrid Au-Ag nanoparticles array is put forth and designed with the optimized parameter of thickness of metal thin films (hAu = 5 nm, and hAg = 25 nm). This study shows that the material of the particles have significant effect on the optical properties. The DDA aided design method can provide the optimized structure parameters for the hybrid nanostructures. © 2009 American Scientific Publishers.
Keyword DDA
Hybrid nanostructure
Rhombic particle array
Spectroscopy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

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 6 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 11 Mar 2011, 23:39:41 EST by Dr Shaoli Zhu on behalf of Aust Institute for Bioengineering & Nanotechnology