한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
권호 표지

Alq$_3$-based organic light-emitting devices with Al/fluoride cathode; Performance enhancement and interface electronic structures

  • Park, Y. (Nano-Surface Group, KRISS) ;
  • Lee, J. (Nano-Surface Group, KRISS) ;
  • Kim, D.Y. (Chemistry and Physics Division, Hallym University) ;
  • Chu, H.Y. (Basic Research Laboratory, ETRI) ;
  • Lee, H. (Basic Research Laboratory, ETRI) ;
  • Do, L.M. (Basic Research Laboratory, ETRI) ;
  • Zyung, T. (Basic Research Laboratory, ETRI)
  • 발행 : 2002.08.21
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초록

The device characteristics and the interface electronic structures of organic light-emitting devices based on tris-(8-hydroxyquinoline)aluminum were investigated with $Al/CaF_2$, Al/LiF, and Al-only cathodes. Similar to the Al/LiF cathode, the $Al/CaF_2$ cathode greatly improved the performance of the device over Al-only cathode. However, a photoelectron spectroscopy study revealed that despite the performance improvement, the evolution of the new peaks during $Al/CaF_2$ cathode formation closely resembled those of the Al-only cathode rather than the Al/LiF cathode.

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