Luminescent properties of Cu+/Sn2+-activated aluminophosphate glass

José A. Jiménez

Research output: Contribution to journalArticle

Abstract

A robust aluminophosphate glass matrix containing substantial amounts of Cu2O and SnO has been prepared by the melt-quenching technique, and the luminescent properties have been assessed. The as-prepared material exhibits tunable luminescence by variation of excitation wavelength, in connection with the distinct excitation/emission properties of Cu+ ions and twofold-coordinated Sn centers in the host. Under excitation of both Cu+ and Sn species at 300 nm, the co-doped material exhibits a bright whitish luminescence, whereas excitation at 360 nm produces an intense orange emission arising merely from Cu+ ions. Thus, white light generation is deemed realizable by combination of cool-bluish emission intrinsic to Sn centers with the warm-orange emission from Cu+ ions. The optical properties of the material after heat treatment have been also investigated. Results indicate the chemical reduction of ionic copper via Sn2+ ultimately producing Cu nanoparticles as evidenced by the surface plasmon resonance. Consequently, the excitation-wavelength dependent photoluminescence bands appear suppressed in relation to Cu+ basically and show a dip attributed to light reabsorption by the plasmonic Cu particles.

Original languageEnglish (US)
Pages (from-to)347-351
Number of pages5
JournalOptical Materials
Volume37
Issue numberC
DOIs
StatePublished - Jan 1 2014
Externally publishedYes

Fingerprint

Ions
Glass
Luminescence
glass
excitation
Wavelength
Surface plasmon resonance
Copper
Quenching
luminescence
Photoluminescence
Optical properties
Heat treatment
ions
Nanoparticles
surface plasmon resonance
wavelengths
heat treatment
quenching
photoluminescence

Keywords

  • Glasses
  • Optical absorption
  • Photoluminescence spectroscopy
  • Surface plasmon resonance

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

Cite this

Luminescent properties of Cu+/Sn2+-activated aluminophosphate glass. / Jiménez, José A.

In: Optical Materials, Vol. 37, No. C, 01.01.2014, p. 347-351.

Research output: Contribution to journalArticle

Jiménez, José A. / Luminescent properties of Cu+/Sn2+-activated aluminophosphate glass. In: Optical Materials. 2014 ; Vol. 37, No. C. pp. 347-351.
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