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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Luminescent characteristics of OLED doped with DCM2 and rubrene

Rubrene과 DCM2가 첨가된 적색 유기전계발광소자의 발광특성

  • 박용규 (전자부품연구원, 마이크로머신연구센터) ;
  • 성현호 (전자부품연구원, 마이크로머신연구센터) ;
  • 김인회 (전자부품연구원, 마이크로머신연구센터) ;
  • 조황신 (전자부품연구원, 마이크로머신연구센터) ;
  • 양해석 (전자부품연구원, 마이크로머신연구센터)
  • Published : 2001.07.01
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Abstract

We fabricated Red Organic light-emitting devices(OLED). The Basic Device Structure is ITO/hole transfer layer, TPD(50nm)/red emitting layer, Alq3 doped with DCM2 or DCM2:rubrene(xnm)/electorn transfer layer, Alq3(50-xnm)/LiF(0.8nm)/Al(8nm) . The thickness of emitting layer(xnm) changed 5, 10, 20nm. we demonstrate red emitting OLED with dependent on the thickness and concentrators of Alq3 layer doped with DCM2 or co-doped with DCM2:ruberene. The Emission color and Brightness are changed with doping or co-doping condition, dopant concentarton. In the case of rubrene:DCM2 co-doped layer structure, the red color Purity and device efficiency is improved. The CIE index of rubrene co-doped OLED is x=0.67, y=0.31. By co-doping the Alq3 layer with DCM2, rubrene, EL efficiency improved from 0.38cd/A to 0.44cd/A in comparison whit DCM2 doped Alq3 layer.

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