Free-standing bimetallic nanorings and nanoring arrays made by on-wire lithography

Cipto Liusman; Shuzhou Li; Xiaodong Chen; Wei Wei; Hua Zhang; George C. Schatz; Freddy Boey; Chad A. Mirkin

doi:10.1021/nn102495f

Free-standing bimetallic nanorings and nanoring arrays made by on-wire lithography

Cipto Liusman, Shuzhou Li, Xiaodong Chen, Wei Wei, Hua Zhang^*, George C. Schatz, Freddy Boey, Chad A. Mirkin

^*Corresponding author for this work

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

53 Citations (Scopus)

Abstract

This paper describes a new strategy for synthesizing free-standing bimetallic nanorings and nanoring arrays based upon on-wire lithography and a galvanic replacement reaction. The strategy allows one to tune the diameter, length, and therefore aspect ratio of the nanorings. In addition, it can be used to produce arrays of nanorings in high yield with control over number and spacing. Spectroscopic studies and discrete dipole approximation calculations show that nanoring dimers exhibit greater surface enhanced Raman scattering than the analogous nanodisk dimers.

Original language	English
Pages (from-to)	7676-7682
Number of pages	7
Journal	ACS Nano
Volume	4
Issue number	12
DOIs	https://doi.org/10.1021/nn102495f
Publication status	Published - Dec 28 2010
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science
General Engineering
General Physics and Astronomy

Keywords

galvanic replacement reaction
nanoring arrays
nanorings
on-wire lithography
surface-enhanced Raman scattering

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10.1021/nn102495f

Cite this

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abstract = "This paper describes a new strategy for synthesizing free-standing bimetallic nanorings and nanoring arrays based upon on-wire lithography and a galvanic replacement reaction. The strategy allows one to tune the diameter, length, and therefore aspect ratio of the nanorings. In addition, it can be used to produce arrays of nanorings in high yield with control over number and spacing. Spectroscopic studies and discrete dipole approximation calculations show that nanoring dimers exhibit greater surface enhanced Raman scattering than the analogous nanodisk dimers.",

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AU - Liusman, Cipto

AU - Li, Shuzhou

AU - Chen, Xiaodong

AU - Wei, Wei

AU - Zhang, Hua

AU - Schatz, George C.

AU - Boey, Freddy

AU - Mirkin, Chad A.

PY - 2010/12/28

Y1 - 2010/12/28

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AB - This paper describes a new strategy for synthesizing free-standing bimetallic nanorings and nanoring arrays based upon on-wire lithography and a galvanic replacement reaction. The strategy allows one to tune the diameter, length, and therefore aspect ratio of the nanorings. In addition, it can be used to produce arrays of nanorings in high yield with control over number and spacing. Spectroscopic studies and discrete dipole approximation calculations show that nanoring dimers exhibit greater surface enhanced Raman scattering than the analogous nanodisk dimers.

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KW - nanoring arrays

KW - nanorings

KW - on-wire lithography

KW - surface-enhanced Raman scattering

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Free-standing bimetallic nanorings and nanoring arrays made by on-wire lithography

Abstract

ASJC Scopus Subject Areas

Keywords

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