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Title: Optical properties of gold nanoparticles on heavily-doped Si substrate synthesized with an electrochemical process
Authors: Zhu, S.
Chen, T. P.
Liu, Z.
Liu, Y. C.
Liu, Y.
Yu, S. F.
Subjects: Dielectric function
Surface plasmon resonance
Issue Date: 22-Apr-2011
Publisher: The Electrochemical Society
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.
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).
Type: Journal/Magazine Article
DOI: 10.1149/1.3583646
ISSN: 0013-4651
Appears in Collections:AP Journal/Magazine Articles

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