한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Effects of ITO surface modification using self-assembly molecules on the characteristics of OLEDs

  • Oh, Se-Young (Dept. of Chemical and Biomolecular Engineering, Sogang University, Interdisciplinary Program of Integrated Biotechnology, Sogang University) ;
  • Kim, Dong-Hwi (Interdisciplinary Program of Integrated Biotechnology, Sogang University)
  • Published : 2007.08.27
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Abstract

We have synthesized 4'-nitrobiphenyl-4-carboxylic acid (NBCA) and fabricated the hole-only device consisting of ITO/NBCA SAM/TPD (1500 ${\AA}$)/Al (500 ${\AA}$) and the organic light emitting diodes (OLEDs) consisting of ITO/NBCA SAM/TPD (600 ${\AA}$)/Alq3 (600 ${\AA}$)/Al (600 ${\AA}$). The prepared hole-only device with NBCA exhibited lower driving voltage than the device with 4-nitrobenzoic acid (NBA). OLEDs using NBCA also show high external quantum efficiency.

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