Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Characteristics on the Variation of Hole transporting layer of Blue organic light-emitting diodes

정공수송층의 변화에 따른 청색 유기 발광 소자의 특성

  • 김구영 (홍익대학교, 정보디스플레이공학과) ;
  • 박정현 (홍익대학교, 정보디스플레이공학과) ;
  • 서지훈 (홍익대학교, 정보디스플레이공학과) ;
  • 이금희 (성균관대학교, 화학과) ;
  • 윤승수 (성균관대학교, 화학과) ;
  • 김영관 (홍익대학교, 정보디스플레이공학과)
  • Published : 2007.11.01
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Abstract

We have demonstrated the characteristics on the variation of hole transporting layer in blue organic light-emitting diodes (OLEDs) using new blue fluorescent emitter. We fabricated two types of hole transporting layer structures that one is 4,4',4"-Tris(N-(2-naphthyl)-N-phenyl-amino)-triphenylamine (2-TNATA) of $600{\AA}$ as a hole injection layer, N,N'-diphenyl-N,N'- (2-napthyl)-(1,1'-phenyl)-4,4'-diamine (NPB) of $200{\AA}$ as a hole transporting layer and another device is NPB of $500{\AA}$ without the 2-TNATA. The devices without the 2-TNATA showed improved characteristic of the luminance and efficiency.

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