Micrometre-sized zinc silicate phosphor powders prepared using a size-controllable droplet generator from a polyethylene glycol spray solution

Dae Soo Jung, Hye Young Koo, Jin Man Han, Yun Chan Kang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Spherical shape Zn2SiO4:Mn,Ba phosphor powders several micrometres in size were prepared by a filter expansion aerosol generator (FEAG) process. The mean size of the Zn2SiO 4:Mn,Ba phosphor powders prepared by the FEAG process from a spray solution containing polyethylene glycol (PEG) was 1.5 μm. On the other hand, the mean size of the Zn2SiO4:Mn,Ba phosphor powders prepared by ultrasonic spray pyrolysis from the same concentration of the spray solution was 0.5 μm. The maximum photoluminescence intensity of the phosphor powders obtained from the spray solution with 8 x 10-4 MPEG was 109% of that of the phosphor powders obtained from the spray solution without PEG. The minimum photoluminescence intensity of the phosphor powders obtained from the spray solution with 1.6 x 10-3 MPEG was 85% of that of the phosphor powders obtained from the spray solution without PEG.

Original languageEnglish
Pages (from-to)423-427
Number of pages5
JournalJournal of Ceramic Processing Research
Volume10
Issue number4
Publication statusPublished - 2009
Externally publishedYes

Keywords

  • Gas phase reaction
  • Phosphor
  • Spray pyrolysis
  • Zinc silicate

ASJC Scopus subject areas

  • Ceramics and Composites

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