Selective surface activation of a functional monolayer for the fabrication of nanometer scale thiol patterns and directed self-assembly of gold nanoparticles

Zachary M. Fresco, Jean Frechet*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

85 Scopus citations

Abstract

Application of a voltage bias between the tip of an atomic force microscope (AFM) and a silicon substrate causes the localized modification of a specially designed self-assembled monolayer (SAM), transforming a surface-bound thiocarbonate into a surface-bound thiol. The resulting surface-bound thiols are used to direct the patternwise self-assembly of gold nanoparticles (AuNPs). This methodology is applied to deposit individual AuNPs onto a surface with nanometer precision and to produce 10 nm lines of closely spaced AuNPs that are a single nanoparticle in width.

Original languageEnglish (US)
Pages (from-to)8302-8303
Number of pages2
JournalJournal of the American Chemical Society
Volume127
Issue number23
DOIs
StatePublished - Jun 15 2005

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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