Stabilization of the luminance efficiency in the blue organic light-emitting devices utilizing CBP and DPVBi emitting layers

  • Bang, H.S. (Research Institute of Information Display, Division of Electronics and Computer Engineering, Hanyang University) ;
  • Choo, D.C. (Research Institute of Information Display, Division of Electronics and Computer Engineering, Hanyang University) ;
  • Park, J.H. (Dept. of Information Display Engineering, Center for Organic Materials & Information Display (COMID), Hong-ik University) ;
  • Seo, J.H. (Dept. of Information Display Engineering, Center for Organic Materials & Information Display (COMID), Hong-ik University) ;
  • Kim, Y.K. (Dept. of Information Display Engineering, Center for Organic Materials & Information Display (COMID), Hong-ik University) ;
  • Kim, T.W. (Research Institute of Information Display, Division of Electronics and Computer Engineering, Hanyang University)
  • Published : 2007.08.27

Abstract

The electrical and the optical properties of blue organic light-emitting devices (OLEDs) with a multiple emitting layer (EML) acting as electron and hole trapping layers were investigated. While the luminance efficiency of the OLEDs with a multiple EML was very stable, regardless of variations in the applied voltage.

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