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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Electroluminescent Properties of Organic Light-emitting Diodes Depending on the Thickness of CuPc Hole-injection Layer

정공 주입층 CuPc 두께 변화에 따른 유기 발광 소자의 발광 특성

  • Lee, Jung-Bok (Department of Electrical Electronics, Gachon University) ;
  • Kim, Kyung-Hwan (Department of Electrical Engineering, Gachon University) ;
  • Kim, Tae-Wan (Department of Physics, Hongik University) ;
  • Lee, Won-Jae (Department of Electrical Electronics, Gachon University)
  • 이정복 (가천대학교 전기전자공학과) ;
  • 김경환 (가천대학교 전기공학과) ;
  • 김태완 (홍익대학교 물리학과) ;
  • 이원재 (가천대학교 전기전자공학과)
  • Received : 2013.11.07
  • Accepted : 2013.11.21
  • Published : 2013.12.01
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Abstract

We investigated the luminescence properties of $Alq_3$ in the device structure of ITO/CuPc/TPD/$Alq_3$/Al. The CuPc as a hole-injection material and TPD as hole-transport material. Emission properties were measured by varying a layer thickness of CuPc (0 nm to 50 nm), which is the hole-injection layer. As a result, it was found that the hole injection occurs smoothly when the layer thickness was 20 nm among the thicknesses from 0 nm to 50 nm.

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References

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