한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Thermal Stability in Organic and Polymeric Thin Films for Organic Electroluminescent Display

  • Kim, Young-Kyoo (Display Technology Center, Institute for Advanced Engineering) ;
  • Park, Seong-Sik (R&D Center, Orion Electric Corporation) ;
  • Jung, Young-Yi (Display Technology Center, Institute for Advanced Engineering) ;
  • Han, Ki-Jong (Display Technology Center, Institute for Advanced Engineering, Department of Molecular Science and Engineering, Ajou University) ;
  • Lee, Jae-Gyoung (Display Technology Center, Institute for Advanced Engineering, Department of Molecular Science and Engineering, Ajou University) ;
  • Hwang, Ha-Keun (Display Technology Center, Institute for Advanced Engineering) ;
  • Choi, Dong-Kwon (Display Technology Center, Institute for Advanced Engineering) ;
  • Keum, Ji-Hwan (Display Technology Center, Institute for Advanced Engineering) ;
  • Im, Woo-Bin (R&D Center, Orion Electric Corporation) ;
  • Lee, Hyo-Jung (Display Technology Center, Institute for Advanced Engineering, Department of Molecular Science and Engineering, Ajou University) ;
  • Lee, Hyung-Sik (Display Technology Center, Institute for Advanced Engineering) ;
  • Kim, Sun-Wook (Display Technology Center, Institute for Advanced Engineering, Department of Molecular Science and Engineering, Ajou University)
  • Published : 2000.01.13
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Abstract

The capacitance-temperature (C-T) measurement technique is proposed in the present work to investigate the thermal stability of organic and polymeric thin films for organic electroluminescent display (OELD). The single layer devices with the individual materials were subjected to the C-T measurement, prior to the examination of the complete OELD. The single layer devices with the small molecules destroyed below $180\;^{\circ}C$ depending on the kinds of materials. However, the device with the hole-transporting polyimide did not show any relaxation up to $200\;^{\circ}C$. The small molecule based OELDs failed to emit light after annealing, whereas that with the hole-transporting polyimide worked well in spite of large reduction in intensity.

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