High-Efficiency Inverted Transparent Blue Organic Light-Emitting Devices

  • Chen, Szu-Yi (Display Institute, National Chiao Tung University) ;
  • Chu, Ta-Ya (Institute of Electrophysics, National Chiao Tung University) ;
  • Chen, Chao-Jung (Display Institute, National Chiao Tung University) ;
  • Chen, Jenn-Fang (Institute of Electrophysics, National Chiao Tung University) ;
  • Chen, Chin H. (Display Institute, Microelectronics and Information Systems Research Center National Chiao Tung University)
  • Published : 2006.08.22

Abstract

We report efficient inverted transparent blue OLEDs (ITOED) with an hole injection layer prepared by co-evaporation of $WO_3$ with NPB, which achieved a total current efficiency of 10.7 cd/A at $20mA/cm^2$ with light emits from both ITO bottom cathode and Au top anode in about 3:1 ratio.

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