Luminescence characteristics of Eu-doped strontium halophosphate phosphor particles prepared by spray pyrolysis

Jong Ho Lee, Yun Chan Kang, Seung Bin Park, Hee Dong Park

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Eu-doped strontium halophosphate phosphor particles were first prepared by spray pyrolysis from various types of precursor sources and their luminescence characteristics were investigated. Phase-pure halophosphate particles were obtained when ammonium phosphate and ammonium dihydrogen phosphate were used as phosphorous source, while halophosphate particles were not obtained using phosphoric acid. Spherical and nonaggregated particles were obtained when ammonium phosphate and ammonium dihydrogen phosphate were used. However, the particles prepared from phosphoric acid were strongly aggregated. The particles prepared from the mixture of strontium nitrate and strontium chloride as strontium and chlorine sources, had a spherical shape and are nonaggregated. The particles prepared from strontium nitrate, strontium chloride and ammonium dihydrogen phosphate had the highest PL intensity among halophosphates due to their phase purity and spherical morphology.

Original languageEnglish
Pages (from-to)3222-3225
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume40
Issue number5 A
Publication statusPublished - 2001 May 1
Externally publishedYes

Keywords

  • Halophosphate
  • Morphology control
  • Photoluminescence
  • Precursor
  • Spray pyrolysis

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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