Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Photoluminescence Properties of Green Phosphor Y1-xBO3:Tbx3+ Synthesized by Solid-state Reaction Method

고상 반응법으로 제조한 녹색 형광체 Y1-xBO3:Tbx3+의 형광 특성

  • Cho, Shin-Ho (Department of Electronic Materials Engineering, Silla University)
  • 조신호 (신라대학교 공과대학 전자재료공학과)
  • Received : 2011.04.18
  • Accepted : 2011.07.12
  • Published : 2011.08.01
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Abstract

[ $Y_{1-x}BO_3:Tb_x^{3+}$ ]ceramic phosphors were synthesized with changing the concentration of $Tb^{3+}$ at a sintering temperature of $1,100^{\circ}C$ and a reduction temperature of $950^{\circ}C$ by using a solid-state reaction method. The crystal structure, surface morphology, and photoluminescence properties of the phosphors were investigated as a function of $Tb^{3+}$ ion concentration by using XRD (x-ray diffractometer), scanning electron microscopy, and photoluminescence spectrophotometry, respectively. The XRD results showed that the main peak of the phosphor powders occurs at (101) plane. As for the photoluminescence properties, the excitation spectra showed the broad band centered at 306 nm and the emission intensity of the spectra peaked at 543 nm indicated a significant decrease as the concentration of $Tb^{3+}$ ion is increased.

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References

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