한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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An Inverted Bottom Emission Organic Light Emitting Device with a New Electron Injection Layer.

  • Lee, You-Jong (Dept. of Display and Semiconductor Physics, Korea University) ;
  • Kim, Joo-Hyung (Dept. of Display and Semiconductor Physics, Korea University) ;
  • Kwon, Soon-Nam (Dept. of Display and Semiconductor Physics, Korea University) ;
  • Hong, Mun-Pyo (Dept. of Display and Semiconductor Physics, Korea University)
  • Published : 2007.08.27
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Abstract

Highly efficient inverted bottom emission organic light emitting device (IBOLED) with a structure of ITO/EIL/Alq3/NPB/WO3/Al was investigated. To enhance electron injection from ITO cathode to Alq3 EML layer, we introduced ultra thin Al layer and Liq layer between ITO and Alq3. The device characteristics showed tune on voltage of 4.5V, the maximum luminance of 21100 Cd/m2 and current efficiencies of 3.56 Cd/A.

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