Nano-sized Y2O3: Eu phosphor powders prepared by spray pyrolysis from spray solution with ethylenediaminetetraacetic acid, citric acid and boric acid

Hye Young Koo, Sang Ho Lee, Da Rae Ko, Yun Chan Kang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Nano-sized Y2O3: Eu phosphor powders were prepared by spray pyrolysis. The precursor powders with a hollow morphology and thin walled structure were obtained from the spray solution with ethylenediaminetetraacetic acid, citric acid and boric acid turned into the Y2O3: Eu phosphor powders with mean sizes of 140 and 450 nm at high post-treatment temperatures of 1050 and 1150 °C. The optimum concentrations of ethylenediaminetetraacetic acid and citric acid to prepare the nano-sized Y2O3: Eu phosphor powders were each 0.1M. The Y2O3: Eu phosphor powders had regular morphologies and narrow size distributions. The mean crystallite sizes of the phosphor powders post-treated at temperatures of 1050 and 1150 oC were 40 and 44 nm. The phosphor powder post-treated at a temperature of 1050 oC had the highest photoluminescence intensity under vacuum ultraviolet illumination.

Original languageEnglish
Pages (from-to)656-659
Number of pages4
JournalJournal of Ceramic Processing Research
Volume11
Issue number6
Publication statusPublished - 2010

Keywords

  • Display materialintroduction
  • Nano powder
  • Phosphor
  • Spray pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites

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