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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Improvement of efficiency and brightness by insertion of the novel layer in OLEDs

새로운 층을 삽입한 고효율 고발광의 OLEDs 제작 및 그 특성

  • Kim, Young-Min (Display and Nano Devices Lab., Korea Institute of Science Technology) ;
  • Lee, Joo-Won (Display and Nano Devices Lab., Korea Institute of Science Technology) ;
  • Park, Jung-Su (Display and Nano Devices Lab., Korea Institute of Science Technology) ;
  • Bae, Sung-Jin (Display and Nano Devices Lab., Korea Institute of Science Technology) ;
  • Paek, Kyeong-Kap (Department of Electronic Engineering, Daejin Univ) ;
  • Jang, Jin (Department of Physics, KyungHee Univ) ;
  • Sung, Man-Young (Department of Electrical Engineering, Korea Univ) ;
  • Ju, Byeong-Kwon (Display and Nano Devices Lab., Korea Institute of Science Technology) ;
  • Kim, Jai-Kyeong (Display and Nano Devices Lab., Korea Institute of Science Technology)
  • 김영민 (한국과학기술연구원 디스플레이&나노소자연구실) ;
  • 이주원 (한국과학기술연구원 디스플레이&나노소자연구실) ;
  • 박정수 (한국과학기술연구원 디스플레이&나노소자연구실) ;
  • 배성진 (한국과학기술연구원 디스플레이&나노소자연구실) ;
  • 백경갑 (대진대학교 전자공학과) ;
  • 장진 (경희대학교 물리학과) ;
  • 성만영 (고려대학교 전기공학과) ;
  • 주병권 (한국과학기술연구원 디스플레이&나노소자연구실) ;
  • 김재경 (한국과학기술연구원 디스플레이&나노소자연구실)
  • Published : 2004.11.11
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Abstract

An efficiency and brightness of the Organic Light-emitting Diodes(OLEDs) by insertion of the novel layer between a singlet emitter and an electron transporting layer without doping processes, has been improved. The novel layers named as the K-M1 and K-M2 layers have shown the excellent improvement in the carrier balance and recombination efficiency. New devices using the K-M1 and K-M2 layers have shown a high efficiencies of over 15cd/A and 61m/W$(at\;20mA/cm^2)$, and brightness of over $16,000cd/m^2(at\;100mA/cm^2)$, respectively.

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