Luminescence and CL saturation characteristics of Eu doped Y-Al-O multicomposition phosphor prepared by spray pyrolysis

Yun Seup Chung, Yun Chan Kang, Seung Bin Park

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Europium-doped yttrium aluminum garnet (YAG) particles were modified by the ultrasonic spray pyrolysis of colloidal solutions. To obtain the high brightness of Y2O3 :Eu and the high stability of YAG:Eu, we put the Y2O3 :Eu phosphor in YAG:Eu particles. The colloidal spray solution was prepared by adding the submicrometer-size Y 2O3 :Eu particles, which were prepared by the filter expansion aerosol generator process, into YAG:Eu aqueous solution. The brightness of the modified YAG:Eu particles was increased by about 30% compared with the pure YAG:Eu particles, and the modified YAG phosphor showed increased cathod-oluminescence (CL) in all excitation voltage ranges. The saturation tendency at the high current excitation was improved as thickness of the YAG layer was increased.

Original languageEnglish
Pages (from-to)H180-H183
JournalJournal of the Electrochemical Society
Volume151
Issue number8
DOIs
Publication statusPublished - 2004
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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