한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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The effect of oxygen doping on organic light emitting diodes by oxygen plasma treatment

  • Hong, Ki-Hyon (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Kim, Ki-Soo (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Kim, Sung-Jun (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Lee, Jong-Lam (Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH)) ;
  • Choi, Ho-Won (LG Display) ;
  • Tak, Yoon-Heung (LG Display)
  • Published : 2008.10.13
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Abstract

By the oxygen plasma exposure to the organic light-emitting diodes, the turn-on voltage decreased from 10.5 to 7 V and luminance increased from 470 to $852\;cd/m^2$. Synchrotron radiation photoelectron spectroscopy results showed that during oxygen plasma exposure, oxygen ions were diffused into organic layer and induced p-type doping effect.

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