한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Blue-Emitting CaS:Pb Thin Film Electroluminescent Devices Fabricated by Controlled Atomic Layer Deposition

  • Yun, Sun-Jin (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute) ;
  • Kim, Yong-Shin (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute) ;
  • KoPark, Sang-Hee (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute) ;
  • Kang, Jung-Sook (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute) ;
  • Cho, Kyoung-Ik (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute) ;
  • Ma, Dong-Sung (Micro-Electronics Technology Laboratory, Electronics and Telecommunications Research Institute)
  • Published : 2000.01.13
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Abstract

Lead-doped calcium sulfide(CaS:Pb) thin film electroluminescent devices were deposited using atomic layer deposition(ALD). CaS:Pb is a very promising blue phosphor showing very high luminance and the color coordinate close to the blue of cathode ray tube. The luminance, $L_{25}$, of CaS:Pb(1.6 mol.%) EL device was higher than 80 $cd/cm^2$ at a driving frequency of 60Hz. The color coordinates of blue EL emission of CaS:Pb deposited by ALD are consistent with the Pb concentration ranging from approximately 0.5 to 3 mol.%.

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