Evolution of the optical properties of a silver-doped phosphate glass during thermal treatment

J. A. Jiménez, M. Sendova, H. Liu

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

The optical properties of a silver-doped phosphate glass have been monitored during thermal processing at several fixed temperatures by in situ optical microspectroscopy. Silver nanoparticle (NP) formation and growth processes were assessed by analysis of surface plasmon resonance spectral features. Nucleation and growth processes were distinguished, which appeared temperature and time dependent. While nucleation was favored at low temperatures, relatively high temperatures promoted NP growth by silver diffusion. Photoluminescence spectra acquired along with optical absorption data indicated a continuous reduction of AgAg0 pairs concomitant with NP precipitation, suggesting their role as nucleation centers. The work of Ag NP formation and the activation energy for silver diffusion were estimated.

Original languageEnglish (US)
Pages (from-to)535-538
Number of pages4
JournalJournal of Luminescence
Volume131
Issue number3
DOIs
StatePublished - Mar 1 2011
Externally publishedYes

Keywords

  • In situ microspectroscopy
  • Nanoparticles
  • Photoluminescence
  • Surface plasmon resonance
  • Tin

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics

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