발간논문

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Vol.50, No.6, 439 ~ 444, 2012
Title
Combustion Synthesis of YAG:Ce Phosphor with Teflon
연정운 Jung Woon Yeon , 원창환 Chang Whan Won , 원형일 Hyung Il Won , H. H. Nersisyan
Abstract
YAG:Ce phosphor were prepared in a self-propagating high-temperature synthesis (SHS) using a 1.5Y2O3+2.5Al2O3+0.116CeO2+3.0KClO3+kCO(NH2)2+m(C2F4)n precursor mixture. The heat for the combustion propagation was provided by the reaction of a KClO3+CO(NH2)2+(C2F4)n mixture. Pure-phase YAG phosphor was synthesized at the combustion temperature of 1210℃ from k=3.6 mole and m=0.3 mole. The as-prepared YAG:Ce phosphor had a particle size of 2-10 ㎛. The addition of Teflon to the precursor mixture increased the YAG particle size and its luminescent intensity. The emission peak of the YAG phosphor was blue-shifted with an increase of Teflon concentration.
Key Words
teflon, YAG phosphor, SHS, self-propagating high-temperature synthesis
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