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

J. A. Jiménez, M. Sendova

Research output: Contribution to journalArticle

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
StatePublished - Feb 17 2011
Externally publishedYes

Fingerprint

Nanocomposites
nanocomposites
Activation energy
activation energy
Glass
Monitoring
glass
Nanoparticles
nanoparticles
Reducing Agents
Surface plasmon resonance
Crystallization
Silver
surface plasmon resonance
crystal growth
phosphates
extinction
Phosphates
silver
optics

ASJC Scopus subject areas

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

Cite this

Diffusion activation energy of Ag in nanocomposite glasses determined by in situ monitoring of plasmon resonance evolution. / Jiménez, J. A.; Sendova, M.

In: Chemical Physics Letters, Vol. 503, No. 4-6, 17.02.2011, p. 283-286.

Research output: Contribution to journalArticle

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