Combinatorial Synthesis and Screening of the Tb-activated Phosphors in the System $CaO-Y_{2}O_3-Al_{2}O_{3}$

  • Yoon, Ho-Shin (Department of Chemical Engineering, Chungnam National University) ;
  • Kim, Chang-Hae (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Hee-Dong (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Ryu, Seung-Kon (Department of Chemical Engineering, Chungnam National University)
  • Published : 2003.07.09

Abstract

We have synthesized some phosphors in the system $CaO-Y_{2}O_3-Al_{2}O_{3}$ by combinatorial polymerized-complex method. Composition and synthetic temperature of phosphors in the liblary was screened from the emission intensities of individual samples under VUV excitation. In $Tb^{3+}$-activated $CaO-Y_{2}O_3-Al_{2}O_{3}$, green phosphors showing good intensity were found to be $CaYAl_{3}O_{7}$, $CaYalO_{4}$, $YAlO_{3}$, $Y_{3}Al_{5}O_{12}$, $Y_{4}Al_{2}O_{9}$, $Ca_{3}Al_{2}O6$.

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