한국표면공학회지 (Journal of the Korean institute of surface engineering)

  • 제40권2호
  • /
  • Pages.77-81
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  • 2007
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
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C545T가 첨가된 OLED 소자의 발광특성

The Luminescent Characteristics of C545T Doped OLED Devices

  • 주성후 (대진대학교 공과대학 신소재공학과) ;
  • 양재웅 (대진대학교 공과대학 신소재공학과)
  • Ju, Sung-Hoo (Department of Advanced Materials Science and Engineering, Daejin University) ;
  • Yang, Jae-Woong (Department of Advanced Materials Science and Engineering, Daejin University)
  • 발행 : 2007.04.30
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초록

To investigate the characteristics of green light-emitting OLED device, C545T material with $Alq_3$ was doped in the OLED device of $ITO(1500)/2-TNATA(400{\AA})/NPB(80{\AA})/Alq_3:C545T(160{\AA})/Alq_3(240{\AA})/LiF(3{\AA})/Al(2400{\AA})$ structure, which was used as a activator at the respective concentration of 0.5 vol.%, 1 vol.%, 2 vol.% and 3 vol.%. It was observed from the experiments that the device efficiency firstly increased with the increase of C545T concentration and the maximum efficiency of 10.9 cd/A and 4.28 lm/W was obtained at C545T concentration of 1 vol.%, and then the device efficiency decreased as the C545T activator concentration increased above 2 vol.% contents, while the longest lifetime of over 750 hours was obtained at C545T concentration of 1 vol.%.

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