Fine-sized Tb 3Al 5O 12:Ce phosphor powders prepared by spray pyrolysis from spray solution with ethylenediaminetetraacetic acid

Hyung Tae Kim, Jung Hyun Kim, Young Jun Hong, Jung Kul Lee, Yun Chan Kang

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Fine Tb 2.91Al 5O 12:Ce 0.09 (TAG:Ce) phosphor powders are prepared by spray pyrolysis from a spray solution with ethylenediaminetetraacetic acid (EDTA). EDTA is used as an organic additive to form hollow precursor powders as well as a chelating agent. The powders prepared from the spray solution with EDTA have mean sizes of 350, 400 and 604 nm at post-treatment temperatures of 1400°C, 1450°C and 1500°C, respectively. The phosphor powders prepared from the spray solution with EDTA have similar photoluminescence intensities at post-treatment temperatures of 1450°C and 1500°C. The photoluminescence intensity of the phosphor powders prepared from the spray solution with EDTA is 116% of that of the phosphor powders prepared from the spray solution without EDTA at a post-treatment temperature of 1450°C.

Original languageEnglish
Pages (from-to)283-287
Number of pages5
JournalElectronic Materials Letters
Volume8
Issue number3
DOIs
Publication statusPublished - 2012 Jun

Keywords

  • chelating agent
  • light emitting diode
  • phosphor
  • spray pyrolysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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