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http://dx.doi.org/10.4313/JKEM.2007.20.6.536

Photoluminescence Characteristics of YAG:Ce Phosphor by Combustion Method  

Lee, Seung-Kyu (경원대학교 전기소방학부)
Choi, Hyung-Wook (경원대학교 전기소방학부)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.20, no.6, 2007 , pp. 536-540 More about this Journal
Abstract
The Ce-doped YAG(Yttrium Aluminum Garnet, $Y_3Al_5O_{12}$) phosphor powders were synthesized by combustion method. The luminescence, formation process and structure of phosphor powders were investigated by means of XRD, SEM and PL. The XRD patterns show that YAG Phase can form through sintering at $1000^{\circ}C$ for 2 h. This temperature is much lower than that required to synthesize YAG phase via the conventional solid state reaction method. There were no intermediate Phases such as YAP(Yttrium Aluminum Perovskite, $YAlO_3$) and YAM(Yttrium Aluminum Monoclinic, $Y_4Al_2sO_9$) observed in the sintering process. The powders absorbed excitation energy in the range $410{\sim}510\;nm$. Also, the crystalline YAG:Ce showed broad emission peaks in the range $480{\sim}600\;nm$ and had maximum intensity at 528 nm.
Keywords
YAG(Yttrium aluminum garnet); Combustion; PL(Photoluminescence); Phosphor;
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