한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Characterization of (Y,Gd) $BO_3$:Eu Phosphors Prepared by Urea Hydrolysis Method

  • Park, Jung-Min (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Chang-Hae (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Jung, Ha-Kyun (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Hee-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Yoon-Chang (Department of Chemistry, Sungkyunkwan University)
  • Published : 2002.08.21
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Abstract

Uniform cylinder-shaped precursors for (Y,Gd)$BO_3$:Eu phosphors were prepared by urea hydrolysis reaction. After heating the precursors at lower temperature than general synthetic methods, the phosphor powders were well dispersed and held their original shapes. Their emissions under vacuum-ultraviolet (VUV) excitation appeared with the peaks at 593nm due to magnetic dipole transition from $^5D_0$ to $^7F_1$, 612nm and 627nm due to electric dipole transition from $^5D_0$ to $^7F_2$

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