Plasmonic Nanochemistry Based on Nanohole Array

Bin Ai, Zengyao Wang, Helmuth Möhwald, Gang Zhang

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

We show that the growth of Ag nanoparticles (NPs) follows the areas of maximum plasmonic field in nanohole arrays (NAs). We thus obtain Ag NP rings not connected to the metallic rim of the nanoholes. The photocatalytic effect resulting from the enhanced E-field of NAs boosts the reaction and is responsible for the site selectivity. The strategy, using plasmonics to control a chemical reaction, can be expanded to organic reactions, for example, synthesis of polypyrrole. After the NA film is removed, ordered ring-shaped Ag NPs are easily obtained, inspiring a facile micropatterning method. Overall, the results reported in this work will contribute to the control of chemical reactions at the nanoscale and are promising to inspire a facile way to pursue patterned chemical reactions.

Original languageEnglish (US)
Pages (from-to)12094-12102
Number of pages9
JournalACS nano
Volume11
Issue number12
DOIs
StatePublished - Dec 26 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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