Morphology of oxide phosphor particles prepared by colloidal seed-assisted spray pyrolysis

Yun Chan Kang, Hyun Sook Roh, Seung Bin Park

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Gd2O3:Eu phosphor particles of spherical and filled morphology were prepared by spray pyrolysis. Morphology control of Gd2O3:Eu phosphor particles in spray pyrolysis was attempted by using colloidal and aqueous solutions. The particles prepared from colloidal solutions containing small amounts of gadolinium hydroxy carbonate sol as seed material had a filled morphology before and after the post treatment; whereas the particles prepared from aqueous solutions were hollow and the structure was broken after post treatment at 1200°C. The particles prepared from colloidal seed solution with 250 nm sol had a spherical and filled morphology with a clean surface; the particles prepared from colloidal seed solution with 70 nm sol had a collapsed spherical shape. The particles prepared from colloidal and aqueous solutions had similar photoluminescent intensities.

Original languageEnglish
Pages (from-to)1601-1603
Number of pages3
JournalJournal of the Electrochemical Society
Volume147
Issue number4
DOIs
Publication statusPublished - 2000 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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