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Improvement of Extraction Efficiency of OLED by Nanosphere Lithography

나노스피어 리소그라피를 이용한 OLED 광추출 효율의 향상

  • Han, Gwang-Min (Center for Functional Nano Fine Chemicals, Chonnam National University) ;
  • Yeo, Jong-Bin (Center for Functional Nano Fine Chemicals, Chonnam National University) ;
  • Lee, Hyun-Yong (Faculty of Applied Chemical Engineering, Chonnam National University)
  • 한광민 (전남대학교 기능성나노 신화학소재사업단) ;
  • 여종빈 (전남대학교 기능성나노 신화학소재사업단) ;
  • 이현용 (전남대학교 응용화학공학부)
  • Received : 2011.07.29
  • Accepted : 2011.11.24
  • Published : 2011.12.01

Abstract

The light extraction efficiency of top-emitting organic light-emitting diode (OLED) was improved by insertion of corrugation patterns between indium tin oxide and organic layers. The corrugation patterns was fabricated by nanosphere lithography, which could form a self-assembled particle monolayer over a large area. The electrical and optical properties for the OLED devices fabricated by vacuum evaporation, were investigated. We have demonstrated the enhancement of the power efficiency of corrugated OLED. As a result, the power efficiency of the corrugated OLED was found to be more than 42%.

Keywords

References

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