• Title/Summary/Keyword: 열형광

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Synthesis of Zn2SiO4 : Mn Phosphor Particles by Spray-pyrolysis Method (분무 열 분해법을 이용한 Zn2SiO4 : Mn 나노 형광체의 광학적 특성에 관한 연구)

  • Nam, Sang-Hun;Kim, Myoung-Hwa;Lee, Sang-Duck;Boo, Jin-Hyo
    • Journal of the Korean Vacuum Society
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    • v.19 no.1
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    • pp.66-71
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    • 2010
  • Spherical shape $Zn_2SiO_4:Mn$ phosphor particles with the mean particle size from submicron to micron sizes were prepared by ultrasonic spray pyrolysis method. A droplet separator was introduced to control the size distribution of the phosphor particles with spherical shape. The $Zn_2SiO_4:Mn$ phosphor particles with 2 mol% doping concentration of manganese have decay time and have photoluminescence intensities comparable with those of the latest commercial product prepared by the solid state reaction method. The size of the phosphor particles was decreased from 1 to 0.2 micrometers as the inorganic salt solution concentration was changed from 0 to 5 M. The phosphor particles prepared from the solutions above 0.5 M have photoluminescence intensities comparable with that of the latest commercial product.