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Luminescent Properties of Four-Band White Light Emitting Diodes

사파장 백색 발광 다이오드의 발광 특성

  • Young-Duk Huh (Department of Chemistry, Dankook University) ;
  • Su-Mi Lim (Department of Chemistry, Dankook University)
  • Published : 2003.08.20

Abstract

$BaMg_2Al_16O_27:Eu,\SrGa_2S_4:Eu$, and ZnCdS:Ag,Cl phosphors were chosen to produce blue, green, and red emissions, respectively, under excitation from a violet light emitting diode (LED). A four-band white LED was obtained by a combination of nonabsorbed violet emission from a violet LED and blue, green, and red emissions from $BaMg_2Al_16O_27:Eu,\SrGa_2S_4:Eu$, and ZnCdS:Ag,Cl phosphors. The luminescent properties of the four-band white LED were also discussed.

Keywords

White LED;Luminescent property

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