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Photoluminescence Characteristics of YAG:Ce Phosphor by Combustion Method

연소합성법에 의한 YAG:Ce 형광체의 발광 특성

  • 이승규 (경원대학교 전기소방학부) ;
  • 최형욱 (경원대학교 전기소방학부)
  • Published : 2007.06.01

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.

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Cited by

  1. Effect of PVA Polymerization on Synthesis of YAG:Ce3+Phosphor Powders Prepared by a Solid-liquid Hybrid Route vol.51, pp.5, 2014, https://doi.org/10.4191/kcers.2014.51.5.424