한국전기전자재료학회논문지 (Journal of the Korean Institute of Electrical and Electronic Material Engineers)

  • 제19권11호
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  • Pages.1044-1049
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  • 2006
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  • 1226-7945(pISSN)
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  • 2288-3258(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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비정질 IZO 애노드를 이용한 형광 유기발광소자의 특성

Characteristics of Fluorescent Organic Light Emitting Diodes using Amorphous IZO Anode Film

  • 문종민 (국립금오공과대학교 정보나노소재공학과) ;
  • 배정혁 (국립금오공과대학교 정보나노소재공학과) ;
  • 정순욱 (국립금오공과대학교 정보나노소재공학과) ;
  • 강재욱 (서울대학교 OLED센터) ;
  • 김한기 (국립금오공과대학교 정보나노소재공학과)
  • 발행 : 2006.11.01
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초록

We reported on characteristics of the fluorescent OLED fabricated on commercial ITO/glass and BCS grown IZO/glass substrate, respectively. The amorphous IZO anode film grown by box cathode sputtering(BCS) exhibited similar electrical and optical characteristics to commercial ITO anode even though it was deposited at room temperature. In addition, the amorphous IZO anode showed higher workfunction (5.2 eV) than that of the commercial ITO anode (5.0 eV) after ozone treatment for 10 min. Furthermore, fluorescent OLED fabricated on amorphous IZO anode film showed improved current-voltage-luminance characteristics, external quantum efficiency and power efficiency en contrast with fluorescent OLED fabricated on commercial ITO anode film. It was thought that smooth surface and high workfunction of amorphous IZO anode lead to more efficient hole injection by reduction of interface barrier height between anode and organic layers.

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참고문헌

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