• 제목/요약/키워드: luminescence properties

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Size Dependence of the Photo- and Cathodo-luminescence of Y2O2S:Eu Phosphors

  • Sung, Hye-Jin;Ko, Ki-Young;Kim, Hyun Soo;Kweon, Seok-Soon;Park, Jong-Yun;Do, Young-Rak;Huh, Young-Duk
    • Bulletin of the Korean Chemical Society
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    • 제27권6호
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    • pp.841-846
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    • 2006
  • $Y_2O_2S$: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.