한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Fabrication of simple bi-layered structure red and green PHOLEDs

  • Jeon, Woo-Sik (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Park, Tae-Jin (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Kwon, Jang-Hyuk (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Pode, Ramchandra (Advanced Display Research Center and Department of Information Display, Kyung Hee University) ;
  • Ahn, Jeung-Sun (Advanced Display Research Center and Department of Information Display, Kyung Hee University)
  • Published : 2008.10.13
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Abstract

Highly efficient red and green phosphorescent devices comprising a simple bilayer structure are reported. The driving voltage to reach $1000\;cd/m^2$ is 4.5 V in $Bebq_2:\;Ir(piq)_3$ red phosphorescent device. Current and power efficiency values of 9.66 cd/A and 6.90 lm/W in this bi-layered simple structure PHOLEDs are obtained, respectively. While in $Bepp_2:Ir(ppy)_3$ green phosphorescent device, the operating voltage value of 3.3V and current and power efficiencies of 37.89 cd/A and 35.02 lm/W to obtain a luminance of $1000\;cd/m^2$ are noticed, respectively.

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