Entrapment of dye molecules within submicron silver particles

Itzik Yosef, David Avnir*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We describe a method for the preparation of metal-organic composites submicron particles. Specifically, the preparation of silver particle-clusters 150-200 nm in size, doped with an organic dye Congo-red, is reported. The use of sodium citrate coupled with sodium hypophosphite facilitated the formation of these particle-clusters, which were fully characterized by TEM analysis, Zeta potential and size measurements, scanning electron microscopy, UV-Vis measurements, and thermogravimetric analysis. The latter reveals a catalytic action of the metal on the thermal oxidative decomposition of the entrapped dye. The use of these particles to obtain dense thin metallic films was demonstrated by the coating of ITO glass.

Original languageEnglish
Pages (from-to)3929-3937
Number of pages9
JournalJournal of Nanoparticle Research
Volume13
Issue number9
DOIs
StatePublished - Sep 2011

Keywords

  • Composite materials
  • Doped-metals
  • Metallic nanostructured coatings
  • Metals
  • Nanomaterials
  • Thin films

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