Simulation on localized surface plasmon resonance behaviors of nanosized PMMA/Ag core-shell structure

Li, Qiang, Wang, Lianzhou, Lu, Gaoqing, Huang, Yao and Zhu, Xianfang (2011) Simulation on localized surface plasmon resonance behaviors of nanosized PMMA/Ag core-shell structure. Guangxue Xuebao/Acta Optica Sinica, 31 7: 0726001.1-0726001.4. doi:10.3788/AOS201131.0726001


Author Li, Qiang
Wang, Lianzhou
Lu, Gaoqing
Huang, Yao
Zhu, Xianfang
Title Simulation on localized surface plasmon resonance behaviors of nanosized PMMA/Ag core-shell structure
Journal name Guangxue Xuebao/Acta Optica Sinica   Check publisher's open access policy
ISSN 0253-2239
Publication date 2011
Year available 2011
Sub-type Article (original research)
DOI 10.3788/AOS201131.0726001
Open Access Status
Volume 31
Issue 7
Start page 0726001.1
End page 0726001.4
Total pages 4
Place of publication Beijing, China
Publisher Kexue Chubanshe,Science Press
Collection year 2011
Language eng
Subject 3107 Atomic and Molecular Physics, and Optics
2504 Electronic, Optical and Magnetic Materials
Formatted abstract
 Localized surface plasmon resonance (LSPR) spectrum behaviors of PMMA/Ag core-shell nanoparticles are extensively and systematically simulated by a calculation method based on Mie theory. Through the simulation calculation, the dependence of the LSPR behaviors of the core-shell nanoparticle on nanoparticle size, ratio of the radius of PMMA core to the thickness of Ag shell, and some other factors is studied. Furthermore, LSPR behaviors of Ag nanoparticles are simulated as well for comparison. The simulation results show that the nanosized PMMA dielectric core can weaken the retardation effects in the process of free electron resonance in the Ag nanoshell. Thus, compared with the LSPR of Ag nanoparticles, the position of the LSPR peak of the PMMA/Ag core-shell nanoparticles has an even more obvious red shift and the width of the LSPR becomes even narrower. Such simulation results indicate that the core-shell nanoparticles would have more advantages over Ag nanoparticles for potential applications of future chemical and biological nanosensors.
Keyword Ag nanoparticle
Localized surface plasmon resonance
Mie theory
PMMA/Ag core-shell nanoparticle
Simulation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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