Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4417
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Title: Optical properties of gold nanoparticles on heavily-doped Si substrate synthesized with an electrochemical process
Authors: Zhu, S
Chen, TP
Liu, Z
Liu, YC
Liu, Y
Yu, SF 
Issue Date: 22-Apr-2011
Source: Journal of the Electrochemical Society, 22 Apr. 2011, v. 158, no. 6, p. K152-155
Abstract: Gold nanoparticles on a heavily-doped Si substrate were synthesized through direct electroreduction of bulk AuCl‾₄ ions. The optical properties of the nanoparticles were determined from ellipsometric analysis. The Lorentz-Drude model was used to represent the effective dielectric function of the gold nanoparticles. A prominent peak at ~ 1.7 eV is identified in the imaginary part 2, which is attributed to the surface plasmon resonance. There are also two minor peaks located at ~ 3.1 and ~ 4.2 eV, respectively, which are related to the interband transitions. The interband transitions are greatly suppressed, which could be due to the modified lattice structures of the nanoparticles.
Keywords: Dielectric function
Electrochemistry
Ellipsometry
Gold
Nanofabrication
Nanoparticles
Surface plasmon resonance
Publisher: Electrochemical Society
Journal: Journal of the Electrochemical Society 
ISSN: 0013-4651
EISSN: 1945-7111
DOI: 10.1149/1.3583646
Rights: © The Electrochemical Society, Inc. 2011. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of The Electrochemical Society, 158(6), K152-K155 (2011).
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