Photoluminescence characteristics of YAG : Tb phosphor particles with spherical morphology and non-aggregation

YAG:Tb particles with sphericity, fine size and non-aggregation characteristics were prepared by a spray pyrolysis process. The characteristics of prepared particles such as crystallinity, morphology, and photoluminescence were compared with those of commercial YAG:Tb phosphor particles. The prepared particles without using flux had higher crystallinity than that of the commercial products and maintained its sphericity and non-aggregation characteristics even after post-treatment at 1400 degrees C for 5 h. The mean size of the prepared particles was 0.94 mu m. For the maximum brightness of YAG:Tb particles, the doping concentration of Tb was 2.5 at.% and the optimum post-treatment temperature was 1400 degrees C. The photoluminescence brightness of particles post-treated at 1400 degrees C was in the same order comparing to that of the commercial product. (C) 1999 Elsevier Science Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
1999-11
Language
ENG
Keywords

BRIGHT GREEN PHOSPHOR; ACTIVATED Y3AL5O12; POWDERS

Citation

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, v.60, no.11, pp.1855 - 1858

ISSN
0022-3697
URI
http://hdl.handle.net/10203/9199
Appears in Collection
CBE-Journal Papers(저널논문)
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