Enhanced UV-excited luminescence of europium ions in silver/tin-doped glass

J. A. Jiménez, S. Lysenko, H. Liu

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

Glasses containing silver, tin and europium were prepared by the melt-quenching technique with silver nanoparticles (NPs) being embedded upon heat treatment (HT). An intensification of Eu3+ ions emission was observed for non-resonant excitation around 270 nm, corresponding to UV absorption in the material. Optical measurements suggest that light absorption occurs at single Ag+ ions and/or twofold-coordinated Sn centers followed by energy transfer to europium which results in populating the 5D0 emitting state in Eu3+. After HT at 843 K, a quenching effect is observed on Eu3+ luminescence with increasing holding time in the 350-550 nm excitation range. The quenching effect shows with the presence of Ag NPs which may provide multipole radiationless pathways for excitation energy loss in europium ions.

Original languageEnglish (US)
Pages (from-to)831-833
Number of pages3
JournalJournal of Luminescence
Volume128
Issue number5-6
DOIs
StatePublished - May 1 2008
Externally publishedYes

Keywords

  • Europium
  • Nanoparticles
  • Photoluminescence
  • Silver
  • 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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