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Electrical and Optical Properties of Self-Assembled, Ordered Gold Nanocrystal/Silica Thin Films Prepared by Sol-Gel Processing

Published online by Cambridge University Press:  01 February 2011

Kai Yang ,
Hongyou Fan ,
Michael J. O'Brien ,
Sima La Fontaine ,
Gabriel P. Lopez ,
Kevin J. Malloy ,
C. Jeffrey Brinker  and
Thomas W. Sigmon
Kai Yang
Affiliation:
Center for High Technology Materials
Hongyou Fan
Affiliation:
Department of Chemical and Nuclear Engineering, the University of New Mexico, Albuquerque, NM 87106 Ceramic Processing and Inorganic Materials Dept.
Michael J. O'Brien
Affiliation:
Center for High Technology Materials
Sima La Fontaine
Affiliation:
Center for High Technology Materials
Gabriel P. Lopez
Affiliation:
Department of Chemical and Nuclear Engineering, the University of New Mexico, Albuquerque, NM 87106
Kevin J. Malloy
Affiliation:
Center for High Technology Materials
C. Jeffrey Brinker
Affiliation:
Department of Chemical and Nuclear Engineering, the University of New Mexico, Albuquerque, NM 87106 Self-Assembled Materials Dept., Advanced Materials Laboratory, Sandia National Laboratories, Albuquerque, NM 87106
Thomas W. Sigmon
Affiliation:
Center for High Technology Materials
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Abstract

Highly ordered gold NC/silica films are synthesized by self-assembly of water-soluble gold nanocrystal micelles and soluble silica using a sol-gel spin-coating technique. The optical properties are analyzed using ellipsometry and ultraviolet-visible spectroscopy. The absorption spectra show a strong surface plasmon absorption band at ∼520 nm for all samples. Angular excitation spectra of the surface plasmon show a steep dip in the reflectivity curve at ∼65°. Charge transport behavior of the films is examined using metal-oxide-semiconductor (MOS) structures.MOS capacitor samples exhibit charge storage with discharge behavior dominated by electron transport within the gold NC arrays.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 872: Symposium J – Micro- and Nanosystems—Materials and Devices , 2005 , J7.5
Copyright
Copyright © Materials Research Society 2005

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