Use of LiCl flux in the preparation of Y2O3:Eu phosphor particles by spray pyrolysis

Yun Chan Kang, Hyun Sook Roh, Seung Bin Park, Hee Dong Park

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

The effect of LiCl flux on the luminescence characteristics, crystallinity and morphology of Y2O3:Eu phosphor particles was investigated. The maximum PL intensity of particles directly prepared at 1300 °C from solution with LiCl flux was 50% higher than that of particles prepared from solution without flux. The PL intensities of particles prepared at 700 and 900 °C from flux solution were 200 and 134% of those of particles prepared from solution without flux at the same preparation temperatures. Activation of Eu dopant was fully occurred even at 700 °C when LiCl flux was used while high temperature above 1100 °C was required without flux, LiCl flux played an important role of improving activation degree of Eu dopant into Y2O3 host and reducing defects of particles.

Original languageEnglish
Pages (from-to)1661-1665
Number of pages5
JournalJournal of the European Ceramic Society
Volume22
Issue number9-10
DOIs
Publication statusPublished - 2002 Sep
Externally publishedYes

Keywords

  • Flux
  • LiCl flux
  • Phosphor
  • Photoluminescence
  • Spray pyrolysis
  • YO:Eu

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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