한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
권호 표지

Luminescent Properties of $Mn^{2+}$ co-doped $Ca_8Mg_1(SiO_4)_4Cl_2:Eu^{2+}$ phosphor and Application in white LEDs

  • Park, Seung-Hyok (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Park, Jung-Kyu (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Chang-Hee (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Chang, Hyun-Ju (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Jang, Ho-Gyeom (Department of Chemistry, Korea University)
  • 발행 : 2007.08.27
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초록

The manganese co-doped $Ca_8Mg_1(SiO_4)_4Cl_2:Eu^{2+}$,$Mn^{2+}$ phosphor was synthesized by solid-state reaction and its photoluminescence characteristics were investigated. The synthesized phosphor show two emission spetrums: green band of 512nm and yellow band of 550nm. White light-emitting diodes (LEDs) were fabricated through combination of a 405nm-emitting InGaN chip and a synthesis phosphor in a single package. Under 20mA current, its CIE chromaticity coordinates are x=0.40 and y=0.45 and a color temperature of 4053K.

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