Y3Al5O12:Tb phosphor particles prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux

H. J. Lee, S. K. Hong, D. S. Jung, Yun Chan Kang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

High brightness Y3Al5O12:Tb phosphor particles with spherical shape and fine size were prepared by spray pyrolysis from spray solution with polymeric precursors and ammonium fluoride flux. The effect of ammonium fluoride flux on the characteristics of the Y 3Al5O12:Tb phosphor particles prepared by spray pyrolysis was investigated. Ammonium fluoride flux dissolved into spray solution improved the photoluminescence intensity of the Y3Al 5O12:Tb phosphor particles prepared by spray pyrolysis. The optimum addition amount of ammonium fluoride flux to produce the maximum photoluminescence intensity was 1 wt.% of the Y3Al5O 12:Tb phosphor particles. The spherical shape of the as-prepared particles obtained by spray pyrolysis from spray solution with polymeric precursors and small amount of ammonium fluoride flux had maintained after post-treatment below 1300 °C. The optimum photoluminescence intensity of the Y3Al5O12:Tb phosphor particles prepared from polymeric precursors and ammonium fluoride flux was 156% of that of the phosphor particles prepared from pure aqueous solution.

Original languageEnglish
Pages (from-to)2383-2387
Number of pages5
JournalMaterials Letters
Volume59
Issue number19-20
DOIs
Publication statusPublished - 2005 Aug 1
Externally publishedYes

Keywords

  • Luminescence
  • Optical materials and properties
  • Phosphors
  • Powder technology
  • Spray pyrolysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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