Morphology control and luminescent property of Y3Al 5O12:Tb particles prepared by spray pyrolysis

Kyeong Youl Jung, Dong Youl Lee, Yun Chan Kang

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

A spray pyrolysis process was used to prepare spherical yttrium aluminum garnet (Y3Al5O12:Tb) phosphor particles with enhanced luminescence properties. The aim of the process was to improve the morphology and luminescent intensity of the Y3Al5O 12:Tb phosphor particles by modifying the precursor solution. The particles produced from a nitrate aqueous solution were spherical with a hollow structure that was deformed by the post treatment at 1400 °C. To avoid the hollowness, the nitrate solution was modified by the addition of an NH 4OH solution so that a polycation solution could be obtained. Compared with the hollow particles prepared from the nitrate aqueous solution, the Y3Al5O12:Tb particles with the spherical morphology and nonaggregated structure, even after the post treatment, were successfully prepared and found to have an improved photoluminescence and cathodoluminescence intensity.

Original languageEnglish
Pages (from-to)2212-2218
Number of pages7
JournalMaterials Research Bulletin
Volume40
Issue number12
DOIs
Publication statusPublished - 2005 Dec 8
Externally publishedYes

Keywords

  • B. Luminescence
  • C. Photoelectron spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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