Effect of preparation temperature on the characteristics of Eu-doped borate phosphor particles in the spray pyrolysis

Hye Young Koo, Dae Soo Jung, Seo Hee Ju, Seung Kwon Hong, Yun Chan Kang

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5 Citations (Scopus)

Abstract

Eu-doped gadolinium borate (GdBO3:Eu) phosphor particles with fine size and uniform morphology were prepared by spray pyrolysis. The effects of the preparation temperatures on the characteristics of the GdBO3:Eu phosphor particles prepared by spray pyrolysis were analyzed. The precursor particles obtained at preparation temperatures below 1400 °C had hollow and porous inner structures. On the other hand, the precursor particles obtained at preparation temperature of 1600 °C had dense structure and uniform morphologies. The precursor particles with glass phases were formed at high-preparation temperatures above 1400 °C. The precursor particles prepared at preparation temperature of 1400 °C turned into GdBO3:Eu phosphor particles with fine size and regular morphology after post-treatment. The GdBO3:Eu phosphor particles prepared from the precursor particles obtained at a preparation temperature of 1400 °C had the maximum photoluminescence intensity, which was similar to that of the commercial (Y,Gd)BO3:Eu phosphor particles.

Original languageEnglish
Pages (from-to)3091-3095
Number of pages5
JournalMaterials Letters
Volume60
Issue number25-26
DOIs
Publication statusPublished - 2006 Nov 1
Externally publishedYes

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Keywords

  • Luminescence
  • Optical materials and properties
  • Phosphors
  • Powder technology
  • Spray pyrolysis

ASJC Scopus subject areas

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

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