한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Preparation and Photoluminescence Properties of $Ba_{1-x}M_xGa_2S_4:Eu^{2+}$ (M = Ca, Sr) Phosphor

  • Yoo, Hyoung-Sun (Dept. of Mater. Sci. Eng., Korea Advanced Institute of Science and Technology) ;
  • Kim, Sung-Wook (Dept. of Mater. Sci. Eng., Korea Advanced Institute of Science and Technology) ;
  • Han, Ji-Yeon (Dept. of Mater. Sci. Eng., Korea Advanced Institute of Science and Technology) ;
  • Park, Bong-Je (Dept. of Mater. Sci. Eng., Korea Advanced Institute of Science and Technology) ;
  • Jeon, Duk-Young (Dept. of Mater. Sci. Eng., Korea Advanced Institute of Science and Technology)
  • Published : 2008.10.13
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Abstract

$Ba_{1-x}M_xGa_2S_4:Eu^{2+}$ (M = Ca, Sr) phosphor was prepared for white light emitting diodes application. Photoluminescence (PL) emission and excitation bands were red-shifted with increase of Ca and Sr content due to the crystal field effect. Moreover, the PL intensity under 450 nm was increased by substitution of Ca and Sr.

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