One-dimensional nanorod arrays: Independent control of composition, length, and interparticle spacing with nanometer precision

Kyle D. Osberg, Abrin L. Schmucker, Andrew J. Senesi, Chad A. Mirkin

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

We report the synthesis of solution dispersible, one-dimensional metal nanostructure arrays as small as 35 nm in diameter using on-wire lithography, wherein feature thickness and spacing in the arrays is tailorable down to approximately 6 and 1 nm, respectively. Using this unique level of control, we present solution-averaged extinction spectra of 35 nm diameter Au nanorod dimers with varying gap sizes to illustrate the effect of gap size on plasmon coupling between nanorods. Additionally, we demonstrate control over the composition of the arrays with Au, Ni, and Pt segments, representing important advances in controlling the ordering of sub-100 nm nanostructures that are not available with current synthesis or assembly methods.

Original languageEnglish (US)
Pages (from-to)820-824
Number of pages5
JournalNano letters
Volume11
Issue number2
DOIs
StatePublished - Feb 9 2011

Keywords

  • On-wire lithography
  • multicomponent nanostructures
  • nanoparticle arrays
  • nanorods
  • plasmon coupling

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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