Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on Characteristic by ITO Surface Treatment and Cathode Change of Organic Light Emitting Diodes

ITO 표면 처리와 음전극 변화에 따른 OLEDs의 특성 연구

  • 김두석 (동아대학교 항만물류시스템학과) ;
  • 장윤기 (동아대학교 전기공학과) ;
  • 권영수 (동아대학교 항만물류시스템학과, 동아대학교 전기공학과)
  • Published : 2005.12.01
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Abstract

In this study, we report an improved efficiency of Organic light emitting diodes(OLEDs), using $UV/O_3$ treated anode and different cathode. We investigated the efficiency of OLEDs by $UV/O_3$ treatment of ITO surface. We Performed $UV/O_3$ treatment and found that $UV/O_3$ treatment enhanced the performance of OLEDs. The fundamental structure of the OLEDs was ITO $anode/{\alpha}-NPD/Alq_3/Al$ or Li:Al cathode. The Li:Al can improve the OLEDs efficiency dramatically in cathode because it has lower work function than Al. Current-voltage, Luminance-voltage characteristics and luminance efficiency were measured at room temperature.

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References

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