Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Size Dependence of the Photo- and Cathodo-luminescence of Y2O2S:Eu Phosphors

  • Sung, Hye-Jin (Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University) ;
  • Ko, Ki-Young (Department of Chemistry, Kookmin University) ;
  • Kim, Hyun Soo (Department of Chemistry, Kookmin University) ;
  • Kweon, Seok-Soon (Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University) ;
  • Park, Jong-Yun (Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University) ;
  • Do, Young-Rak (Department of Chemistry, Kookmin University) ;
  • Huh, Young-Duk (Department of Chemistry, Institute of Nanosensor and Biotechnology, Dankook University)
  • Published : 2006.06.20
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Abstract

$Y_2O_2S$:Eu phosphors were synthesized via solid-state reactions. $Y_2O_2S$:Eu phosphor particles of various sizes were obtained by varying the firing temperature and firing time. The photoluminescence properties of these $Y_2O_2S$:Eu phosphors were examined. In addition, the cathodoluminescence properties of the $Y_2O_2S$:Eu phosphors were examined for applied voltages of 3-8 kV. The relationship between the luminescence intensity and particle size of the$Y_2O_2S$:Eu phosphors was investigated. The photoluminescence and cathodoluminescence of the $Y_2O_2S$:Eu phosphors are affected differently by variations in particle size.

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