Improved photoluminescence of BaMgAl10O17 blue phosphor prepared by spray pyrolysis

Kyeong Youl Jung, Dong Youl Lee, Yun Chan Kang, Hee Dong Park

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

BaMgAl10O17:Eu2+ (BAM) blue phosphor particles with improved photoluminescence (PL) intensity under vacuum ultraviolet (VUV) excitation were prepared by a spray pyrolysis process. In order to improve the PL intensity, Er3+ and Nd3+ ions were used as co-doping elements. The VUV characteristics of BAM:Eu 2+,M+ (M=Er, Nd) were monitored with varying the Er 3+ and Nd3+ content in order to find the optimal co-doping concentration when they were prepared by spray pyrolysis. It was found that doping Er3+ or Nd3+ enhances the PL intensity of BAM:Eu2+ blue phosphor particles. In particular, the M 3+ doping effect on the PL intensity was pronounced when the prepared BAM:Eu2+,M3+ particles were excited by 172nm VUV. The maximum intensity was obtained when the M3+ content was 1.0at% with respect to Ba element. The PL intensity of BAM:Eu2+,M + (M=Er3+, Nd3+) particles was also further improved by producing them in a spherical shape, which was successfully achieved by controlling the spray solution. The optimized BAM:Eu 2+,M+ particles had about 10% higher PL intensity than that of the commercial particles, which are made by a conventional solid-state reaction.

Original languageEnglish
Pages (from-to)127-133
Number of pages7
JournalJournal of Luminescence
Volume105
Issue number2-4
DOIs
Publication statusPublished - 2003 Dec 1
Externally publishedYes

Fingerprint

Spray pyrolysis
Vacuum
Phosphors
phosphors
pyrolysis
sprayers
Photoluminescence
photoluminescence
Doping (additives)
vacuum
Ions
Solid state reactions
Chemical elements
solid state
excitation

Keywords

  • Blue phosphor
  • Phosphor
  • Photoluminescence
  • Spray pyrolysis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Improved photoluminescence of BaMgAl10O17 blue phosphor prepared by spray pyrolysis. / Jung, Kyeong Youl; Lee, Dong Youl; Kang, Yun Chan; Park, Hee Dong.

In: Journal of Luminescence, Vol. 105, No. 2-4, 01.12.2003, p. 127-133.

Research output: Contribution to journalArticle

Jung, Kyeong Youl ; Lee, Dong Youl ; Kang, Yun Chan ; Park, Hee Dong. / Improved photoluminescence of BaMgAl10O17 blue phosphor prepared by spray pyrolysis. In: Journal of Luminescence. 2003 ; Vol. 105, No. 2-4. pp. 127-133.
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