Vacuum ultraviolet and visible spectra of Eu3+ in Y2O2S and Eu2O2S

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Bing-Ming Cheng
  • Chang-Kui Duan
  • Peter A. Tanner

Detail(s)

Original languageEnglish
Pages (from-to)902-904
Journal / PublicationOptical Materials
Volume31
Issue number6
Publication statusPublished - Apr 2009

Abstract

The vacuum ultraviolet excitation spectrum and visible luminescence spectra of Y2O2S:Eu3+ (10 at.%) and Eu2O2S are reported and assigned. Excitation bands peaking at 312 nm (3.97 eV) and 244 nm (5.08 eV) are assigned to S-3p and O-2p to Eu3+ charge transfer absorptions. The bands peaking at 175 nm (7.08 eV) and 224 nm (5.54 eV) are due to absorption from the valence band dominated by O-2p orbitals to the different Y-4d conduction bands. The absorptions from the valence band dominated by S-3p orbitals to the conduction bands are weaker. © 2008 Elsevier B.V. All rights reserved.

Research Area(s)

  • Charge transfer, Eu3+, Oxysulfide, Phosphor, VUV

Citation Format(s)

Vacuum ultraviolet and visible spectra of Eu3+ in Y2O2S and Eu2O2S. / Cheng, Bing-Ming; Duan, Chang-Kui; Tanner, Peter A.
In: Optical Materials, Vol. 31, No. 6, 04.2009, p. 902-904.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review