한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
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Emission zone in organic light-emitting diodes(OLEDs)

  • Noh, Sok-Won (Department of Chemical Engineering, Hong-Ik University) ;
  • Lim, Sung-Taek (Department of Chemical Engineering, Hong-Ik University) ;
  • Shin, Dong-Myung (Department of Chemical Engineering, Hong-Ik University)
  • 발행 : 2000.01.13
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초록

Organic light-emitting diodes(OLEDs) are constructed using multilayer organic thin films. The hole-transport layer is PVK and the emitting material is rubrene and $Alq_3$. The emitting layer is doped with rubrene partially. As the partially-doped layer migrate from the interface PVK/emitting layer, the emission peak of rubrene decrease and diminish. By comparing with the previous reports, we propose the zero-field hole injection barrier at ITO/PVK interface and hole-trapping effect of rubrene in host materials as predominant factor to determine the emission zone.

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