Luminescence comparison of YAG:Ce phosphors prepared by microwave heating and precipitation methods

Kyeong Youl Jung, Yun Chan Kang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Ce-doped yttrium aluminum garnet (YAG:Ce) particles were prepared by microwave heating and conventional precipitation methods. The YAG:Ce particles prepared by microwave synthesis showed higher luminescence intensity compared with those prepared by the precipitation method. The emission intensity of YAG:Ce particles had a linear relation to the crystallite size, regardless of the preparation method. According to the XRD analysis, the YAG particles prepared by the microwave method had larger crystallite size than that of the particles prepared by the precipitation method. In addition, the pure YAG phase without any impurity was obtained by the microwave method, even at low thermal-treatment temperature. Thus, it was concluded that the high crystallinity and phase purity are responsible for the high luminescence intensity of microwave-synthesized YAG:Ce phosphor.

Original languageEnglish
Pages (from-to)1615-1618
Number of pages4
JournalPhysica B: Condensed Matter
Volume405
Issue number6
DOIs
Publication statusPublished - 2010 Mar 15
Externally publishedYes

Fingerprint

Microwave heating
Phosphors
yttrium-aluminum garnet
phosphors
Luminescence
Microwaves
luminescence
microwaves
heating
Crystallite size
Garnets
Yttrium
Heat treatment
Impurities
Aluminum
crystallinity
purity
impurities
preparation
Temperature

Keywords

  • Chemical synthesis
  • Luminescence
  • Optical materials
  • X-ray diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Luminescence comparison of YAG:Ce phosphors prepared by microwave heating and precipitation methods. / Jung, Kyeong Youl; Kang, Yun Chan.

In: Physica B: Condensed Matter, Vol. 405, No. 6, 15.03.2010, p. 1615-1618.

Research output: Contribution to journalArticle

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abstract = "Ce-doped yttrium aluminum garnet (YAG:Ce) particles were prepared by microwave heating and conventional precipitation methods. The YAG:Ce particles prepared by microwave synthesis showed higher luminescence intensity compared with those prepared by the precipitation method. The emission intensity of YAG:Ce particles had a linear relation to the crystallite size, regardless of the preparation method. According to the XRD analysis, the YAG particles prepared by the microwave method had larger crystallite size than that of the particles prepared by the precipitation method. In addition, the pure YAG phase without any impurity was obtained by the microwave method, even at low thermal-treatment temperature. Thus, it was concluded that the high crystallinity and phase purity are responsible for the high luminescence intensity of microwave-synthesized YAG:Ce phosphor.",
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