Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4: Eu2+ green phosphors

Hee Suk Roh, In Sun Cho, Jae Sul An, Chin Moo Cho, Tae Hoon Noh, Dong Kyun Yim, Dong-Wan Kim, Kug Sun Hong

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Eu2+-doped BaAl2O4 green phosphors were prepared by a conventional solid-state reaction and the effects of Dy 3+ co-doping on the photoluminescence property were investigated. The phosphors were characterized by X-ray powder diffraction (XRD), fluorescence spectroscopy, field-emission scanning electron microscopy (FESEM) and X-ray photoelectron spectroscopy (XPS). XRD showed that all prepared samples exhibited a hexagonal BaAl2O4 phase. Fluorescence spectroscopy showed that the photoluminescence efficiency increased with increasing Eu 2+ concentration until 3 mol% then decreased at higher concentrations due to concentration quenching effect. Moreover, Dy3+ co-doping increased the photoluminescence efficiency of the Eu2+-doped BaAl2O4 phosphor.

Original languageEnglish
Pages (from-to)443-447
Number of pages5
JournalCeramics International
Volume38
Issue number1
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes

Fingerprint

Phosphors
Photoluminescence
Fluorescence spectroscopy
X ray powder diffraction
Doping (additives)
Solid state reactions
Field emission
Quenching
X ray photoelectron spectroscopy
Scanning electron microscopy

Keywords

  • BaAlO:Eu
  • Dy co-doping effects
  • Optimum concentration
  • Phosphor
  • Photoluminescence

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Roh, H. S., Cho, I. S., An, J. S., Cho, C. M., Noh, T. H., Yim, D. K., ... Hong, K. S. (2012). Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4: Eu2+ green phosphors. Ceramics International, 38(1), 443-447. https://doi.org/10.1016/j.ceramint.2011.07.025

Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4 : Eu2+ green phosphors. / Roh, Hee Suk; Cho, In Sun; An, Jae Sul; Cho, Chin Moo; Noh, Tae Hoon; Yim, Dong Kyun; Kim, Dong-Wan; Hong, Kug Sun.

In: Ceramics International, Vol. 38, No. 1, 01.01.2012, p. 443-447.

Research output: Contribution to journalArticle

Roh, Hee Suk ; Cho, In Sun ; An, Jae Sul ; Cho, Chin Moo ; Noh, Tae Hoon ; Yim, Dong Kyun ; Kim, Dong-Wan ; Hong, Kug Sun. / Enhanced photoluminescence property of Dy3+ co-doped BaAl 2O4 : Eu2+ green phosphors. In: Ceramics International. 2012 ; Vol. 38, No. 1. pp. 443-447.
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