Plasmonic properties of copper nanoparticles fabricated by nanosphere lithography

George H. Chan; Jing Zhao; Erin M. Hicks; George C. Schatz; Richard P. Van Duyne

doi:10.1021/nl070648a

Plasmonic properties of copper nanoparticles fabricated by nanosphere lithography

George H. Chan, Jing Zhao, Erin M. Hicks, George C. Schatz^*, Richard P. Van Duyne

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

793 Scopus citations

Abstract

The localized surface plasmon resonance (LSPR) of oxide-free Cu nanoparticles fabricated by nanosphere lithography is examined by UV-vis extinction spectroscopy and electrodynamics theory. The LSPR of the Cu nanoparticles is significantly affected by the presence of copper oxides and the removal of the oxide species yields a dramatic difference in the observed LSPR. From a comparison of the LSPR of Cu, Ag, and Au nanoparticles of similar geometry, we conclude that Cu displays an intense and narrow LSPR peak that is comparable to Ag and Au.

Original language	English (US)
Pages (from-to)	1947-1952
Number of pages	6
Journal	Nano letters
Volume	7
Issue number	7
DOIs	https://doi.org/10.1021/nl070648a
State	Published - Jul 2007

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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title = "Plasmonic properties of copper nanoparticles fabricated by nanosphere lithography",

abstract = "The localized surface plasmon resonance (LSPR) of oxide-free Cu nanoparticles fabricated by nanosphere lithography is examined by UV-vis extinction spectroscopy and electrodynamics theory. The LSPR of the Cu nanoparticles is significantly affected by the presence of copper oxides and the removal of the oxide species yields a dramatic difference in the observed LSPR. From a comparison of the LSPR of Cu, Ag, and Au nanoparticles of similar geometry, we conclude that Cu displays an intense and narrow LSPR peak that is comparable to Ag and Au.",

author = "Chan, {George H.} and Jing Zhao and Hicks, {Erin M.} and Schatz, {George C.} and {Van Duyne}, {Richard P.}",

year = "2007",

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T1 - Plasmonic properties of copper nanoparticles fabricated by nanosphere lithography

AU - Chan, George H.

AU - Zhao, Jing

AU - Hicks, Erin M.

AU - Schatz, George C.

AU - Van Duyne, Richard P.

PY - 2007/7

Y1 - 2007/7

N2 - The localized surface plasmon resonance (LSPR) of oxide-free Cu nanoparticles fabricated by nanosphere lithography is examined by UV-vis extinction spectroscopy and electrodynamics theory. The LSPR of the Cu nanoparticles is significantly affected by the presence of copper oxides and the removal of the oxide species yields a dramatic difference in the observed LSPR. From a comparison of the LSPR of Cu, Ag, and Au nanoparticles of similar geometry, we conclude that Cu displays an intense and narrow LSPR peak that is comparable to Ag and Au.

AB - The localized surface plasmon resonance (LSPR) of oxide-free Cu nanoparticles fabricated by nanosphere lithography is examined by UV-vis extinction spectroscopy and electrodynamics theory. The LSPR of the Cu nanoparticles is significantly affected by the presence of copper oxides and the removal of the oxide species yields a dramatic difference in the observed LSPR. From a comparison of the LSPR of Cu, Ag, and Au nanoparticles of similar geometry, we conclude that Cu displays an intense and narrow LSPR peak that is comparable to Ag and Au.

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SP - 1947

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JO - Nano letters

JF - Nano letters

IS - 7

ER -

Plasmonic properties of copper nanoparticles fabricated by nanosphere lithography

Abstract

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