(CeTb)MgAl11O19 phosphor particles prepared by spray pyrolysis from spray solution containing citric acid and ethylene glycol

Dae Soo Jung, Seung Kwon Hong, Seo Hee Ju, Hyo Jin Lee, Yun Chan Kang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

(CeTb)MgAl11O19 (CTMA) phosphor particles were prepared by spray pyrolysis from polymeric precursor solutions under severe preparation conditions. Citric acid and ethylene glycol used as polymeric precursors formed as-prepared and post-treated (CeTb)MgAl11O 19 phosphor particles with a spherical shape and a dense morphology. The CTMA phosphor particles prepared from polymeric precursor solutions at 1600°C had a completely spherical shape, a dense morphology, and a nonaggregated morphology after post-treatment at 1400°C. The CTMA phosphor particles prepared from the polymeric precursor solution had a lower impurity content than those prepared from a pure aqueous solution. All the phosphor particles prepared from the polymeric precursor solution had higher photoluminescence intensities than those prepared from the pure aqueous solution at all temperatures. The photoluminescence intensity of the CTMA phosphor particles prepared from the polymeric precursor solution was 108% that of the phosphor particles prepared from the pure aqueous solution at 1600°C.

Original languageEnglish
Pages (from-to)4975-4978
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume44
Issue number7 A
DOIs
Publication statusPublished - 2005 Jul 8

Keywords

  • Display material
  • Optical materials
  • Phosphor
  • Photoluminescence
  • Spray pyrolysis

ASJC Scopus subject areas

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

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