Paper Title:
Controllable Extinction Property of Au/SiO2 Nanocomposite Induced by Neutralization Reaction Time
  Abstract

The Au/SiO2 nanocomposite was produced using surface active agent P123, and its optical absorption spectra was measured by spectrophotometer. It was found that the intensity of absorption peak was strengthened and underwent a red-shift as the neutralization reaction time extended. The variation of optical extinction property of one gold particle (GP) with different size had been investigated by Mie theory. It was found that the extinction property of the single spherical GP possessed an obvious size effect. The extinction property of Au/SiO2 nanocomposite had been analyzed by Maxwell-Garnett (MG) theory. It showed that the extinction peak underwent a red-shift and the extinction intensity was strengthened when the size of gold nanoparticles (GNs) increased. The theoretical and the experimental results show that the extinction property of Au/SiO2 nanocomposite changes because the scattering effect of GNs are strengthened when their sizes increased by controlling the neutralization reaction time.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
2023-2028
DOI
10.4028/www.scientific.net/AMR.233-235.2023
Citation
J. Y. Fang, X. A. Zhang, S. Q. Qin, F. Wang, X. H. Li, S. L. Chang, "Controllable Extinction Property of Au/SiO2 Nanocomposite Induced by Neutralization Reaction Time", Advanced Materials Research, Vols. 233-235, pp. 2023-2028, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Yi Chen, Qiang Li, Zheng Wu, Xian Fang Zhu
Abstract:Fabrication, optical property of nano coreshells and their potential applications in chemical and biological sensors have attracted much...
39
Authors: Wei Zhang, Cheng Wang, Wei Zhou, Zhao Yue, Guo Hua Liu
Chapter 19: Nanofabrication, Nanometrology and Applications
Abstract:The Discrete Dipole Approximation (DDA) method and the Finite Difference Time Domain (FDTD) method are used to analyze silver nanospheres...
3860
Authors: Sakineh Hashemizadeh, Majid Rashidi Huyeh
Chapter 6: Nanocomposites
Abstract:Linked to Surface Plasmon Resonance (SPR) phenomena, optical and thermo-optical properties of metal-dielectric nanocomposite materials...
670