Diffusion activation energy of Ag in nanocomposite glasses determined by in situ monitoring of plasmon resonance evolution

J. A. Jiménez, M. Sendova

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Abstract

We report an in situ non-destructive optical microspectroscopy method for measurement of the diffusion activation energy for silver in glass. The approach is based on a set of isothermal time-dependent characteristics of the surface plasmon resonance of Ag nanoparticles analyzed in the context of Mie extinction and crystal growth theories. The material studied in real time during thermal processing consisted of a melt-quenched phosphate-based glass system to which 4 mol% of Ag2O along with reducing agent SnO in the same amount were added. A diffusion activation energy of 5.2 eV was obtained and discussed in terms of glass composition. The mechanism of Ag nanoparticle growth was elucidated as well.

Original languageEnglish (US)
Pages (from-to)283-286
Number of pages4
JournalChemical Physics Letters
Volume503
Issue number4-6
DOIs
Publication statusPublished - Feb 17 2011
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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