Spatially controlled assembly of nanomaterials at the nanoscale

Puru Parthasarathy*, Paula M. Mendes, Schopf Eric, Jon A. Preece, J. Fraser Stoddart, Yong Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A molecular monolayer of 4-nitrothiophenol on gold electrodes is reduced electrochemically when its nitro groups are converted into amino groups by potentiometric scans. The protonated amine with its NH functions can be employed to induce the self-assembly of gold nanoparticles at the surface of the electrodes. The electrochemical reaction and the induced assembly process can be controlled at the nanoscale level on the electrodes with a high degree of selectivity. The technology opens up the possibility of fabricating complex multi-nanomaterial nanostructures on the basis of a two-step electrochemical assembly process.

Original languageEnglish (US)
Pages (from-to)650-654
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Volume9
Issue number1
DOIs
StatePublished - Jan 1 2009

Keywords

  • Electrochemical modification
  • Lithography
  • Nanostructures
  • Self-Assembled monolayers
  • Self-assembly

ASJC Scopus subject areas

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

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