Ca7.97-xMg(SiO4)4Cl2:Eu 0.03,Dx (D =Y, Gd, Mn) phosphor particles prepared by spray pyrolysis

Hye Young Koo, Jin Man Han, Yun Chan Kang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Green-light-emitting Ca7.97-xMg(SiO4) 4Cl2:Eu0.03,Dx (D = Y, Gd, Mn) phosphor particles were prepared by spray pyrolysis. The effects of the type of codopant on the morphology, crystallinity, and excitation and emission spectra of these particles were investigated. The codoped Ca8Mg(SiO 4)4Cl2:Eu2+ phosphor particles obtained were fine and showed regular morphologies after post-treatment at 1100°C for 3 h in a reducing atmosphere. The Ca7.97-xMg(SiO 4)4Cl2:Eu0.03,Dx (D = Y, Gd, Mn) phosphor particles had broad excitation wavelengths that ranged from 260 to 450 nm. The improvements in their photoluminescence intensity were 29, 29, and 21% when the x values for the Y, Mn, and Gd codopants were 0.0075, 0.005, and 0.02, respectively.

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalJapanese journal of applied physics
Volume47
Issue number1
DOIs
Publication statusPublished - 2008 Jan 18
Externally publishedYes

Keywords

  • Display
  • Phosphor
  • Photoluminescence
  • Spray pyrolysis

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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