한국정보디스플레이학회:학술대회논문집

한국정보디스플레이학회 (The Korean Infomation Display Society)
권호 표지

Effect of the LiF anode interfacial layer on polymer light emitting diodes

  • Sohn, Sun-Young (Department of Physics, Institute of Basic Science, and Brain Korea 21 Physics Research Division, Sungkyunkwan University) ;
  • Lee, Dae-Woo (Department of Physics, Institute of Basic Science, and Brain Korea 21 Physics Research Division, Sungkyunkwan University) ;
  • Park, Keun-Hee (Department of Physics, Institute of Basic Science, and Brain Korea 21 Physics Research Division, Sungkyunkwan University) ;
  • Jung, Dong-Geun (Department of Physics, Institute of Basic Science, and Brain Korea 21 Physics Research Division, Sungkyunkwan University) ;
  • Kim, H.M. (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Manna, U. (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Yi, J. (School of Information and Communication Engineering, Sungkyunkwan University)
  • 발행 : 2005.07.19
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초록

Electrical and optical characteristics of MEH-PPV-based PLEDs with the LiF anode interfacial layer were investigated. The maximum luminance efficiency of the device with a LiF anode interfacial layer of 1-nm-thick was 3.0 lm/W, which is higher than 1.97 lm/W of the device without a LiF layer. By inserting LiF, excess injected holes from ITO anode can be blocked and hence the recombination ratio of electrons and holes can be increased in the emitting layer to improve device efficiency.

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