Morphological and optical characteristics of BaMg0.9Al 10O19:Mn2+ phosphor powders prepared by flame spray pyrolysis

Jung Sang Cho, Dae Soo Jung, Sang Ho Lee, Yun Chan Kang

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2 Citations (Scopus)

Abstract

Green-light emitting BaMg0.9Al10O19: Mn2+ phosphor powders, with fine sizes, spherical shapes, and filled morphologies, were prepared by flame spray pyrolysis. The precursor powders obtained by flame spray pyrolysis from the aluminum polycation solution at low flow rate of the carrier gas had a fine size, dense structure and narrow size distribution even at very fast drying and decomposition rates of droplets or powders. Therefore, the BAM:Mn2+ phosphor powders obtained after post-treatment at a temperature of 1400°C had a spherical shape, fine size and filled morphology. The BAM:Mn2+ phosphor powders obtained at a post-treatment temperature of 1400°C had a high photoluminescence intensity under a vacuum ultraviolet light of 147 nm because of high crystallinity and good morphology.

Original languageEnglish
Pages (from-to)83-87
Number of pages5
JournalJournal of Ceramic Processing Research
Volume9
Issue number1
Publication statusPublished - 2008 Apr 3
Externally publishedYes

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Keywords

  • Flame spray pyrolysis
  • Phosphor
  • Photoluminescence

ASJC Scopus subject areas

  • Ceramics and Composites

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