Luminescence of trivalent samarium ions in silver and tin co-doped aluminophosphate glass

José A. Jiménez, Sergiy Lysenko, Huimin Liu, Mariana Sendova

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

This work presents the spectroscopic properties of trivalent samarium ions in a melt-quenched aluminophosphate glass containing silver and tin. Addition of 4 mol% of each Ag2O and SnO into the glass system with 2 mol% Sm2O3 results in Sm3+ ions luminescence under non-resonant UV excitation owing to energy transfer from single silver ions and/or twofold-coordinated Sn centers. Assessment of luminescence spectra and decay dynamics suggest the energy transfer mechanism to be essentially of the resonant radiative type. Moreover, a connection between the luminescent and structural properties of the rare-earth doped glass system was demonstrated. Raman spectroscopy characterization revealed that no significant variation in the glass matrix is induced by Sm3+ doping at the concentration employed. A comparison was made with a structural study performed on the Eu 3+ doped system (containing 2 mol% Eu2O3 along with 4 mol% of each Ag2O and SnO) where the radiative energy transfer mechanism was previously established. The data appears consistent regarding the lack of variation in glass structure upon the Eu3+ and Sm 3+ doping in connection with the dominance of the radiative transfer in the matrix. Thermal treatment of the material leads to precipitation of Ag nanoparticles of a broad size range inside the dielectric as observed by transmission electron microspcopy. Assessment of 4G5/2 excited state decay in Sm3+ ions shows no influence from the silver particles.

Original languageEnglish (US)
Pages (from-to)1215-1220
Number of pages6
JournalOptical Materials
Volume33
Issue number8
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

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Keywords

  • Nanoparticles
  • Non-crystalline solids
  • Optical absorption
  • Photoluminescence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

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