Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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The Luminescence Properties of YAG:$Tb^{3+}$ Phosphor Prepared by Hydrothermal Synthesis

YAG:$Tb^{3+}$ 형광체 분말의 수열합성과 발광 특성

  • 김상문 (LG전자(주) Display사업본부 Display Device연구소) ;
  • 지성훈 (부산대학교 공과대학 무기재료공학과) ;
  • 구자인 (부산대학교 공과대학 무기재료공학과) ;
  • 김태옥 (부산대학교 공과대학 무기재료공학과)
  • Published : 2000.08.01
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Abstract

YAG:Tb3+ as green phosphor were studied for the development of low voltage FED phosphor prepared by hydrothermal synthesis. We changed the concentration of luminescence center ion Tb3+ in hydrothermal reaction of which conditions were at 8M NH4OH as mineralizer, at 35$0^{\circ}C$ for 12hrs. As results, we could finally get the YAG:Tb3+ (Y3-xTbxAl5O12) powder of which particle size was about 0.2~1.0${\mu}{\textrm}{m}$. The excitation spectra and the green emitted spectra of YAG:Tb3+ phosphor powder were observed. When we doped 0.25 mol Tb to YAG, we could observe the maximum cathodoluminescence from YAG:Tb3+ phosphor and the chromaticity coordinate of the phosphor was shown x=0.35, y=0.56 in CIE1931 diagram.

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