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
JournalJournal of the Electrochemical Society
Volume151
Issue number8
DOIs
Publication statusPublished - 2004 Sep 13
Externally publishedYes

Fingerprint

Spray pyrolysis
Garnets
Yttrium
Phosphors
yttrium-aluminum garnet
phosphors
pyrolysis
sprayers
Luminescence
luminescence
saturation
Aluminum
Luminance
brightness
Europium
yttrium-aluminum-garnet
europium
Aerosols
Particles (particulate matter)
excitation

ASJC Scopus subject areas

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

Cite this

Luminescence and CL saturation characteristics of Eu doped Y-Al-O multicomposition phosphor prepared by spray pyrolysis. / Chung, Yun Seup; Kang, Yun Chan; Park, Seung Bin.

In: Journal of the Electrochemical Society, Vol. 151, No. 8, 13.09.2004.

Research output: Contribution to journalArticle

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