Free-Standing Bimetallic Nanorings and Nanoring Arrays Made by On-Wire Lithography

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

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

Detail(s)

Original languageEnglish
Pages (from-to)7676-7682
Journal / PublicationACS Nano
Volume4
Issue number12
Online published11 Nov 2010
Publication statusPublished - 28 Dec 2010
Externally publishedYes

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. © 2010 American Chemical Society.

Research Area(s)

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

Citation Format(s)

Free-Standing Bimetallic Nanorings and Nanoring Arrays Made by On-Wire Lithography. / Liusman, Cipto; Li, Shuzhou; Chen, Xiaodong et al.

In: ACS Nano, Vol. 4, No. 12, 28.12.2010, p. 7676-7682.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review