Highly efficient blue electroluminescence from a distyrylarylene emitting layer with a new dopant

  • Hosokawa C
  • Higashi H
  • Nakamura H
 et al. 
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Abstract

We report that organic electroluminescence devices with a distyrylarylene (DSA) emitting layer including a new dopant realized highly efficient and bright emission in blue region. This dopant was amino‐substituted DSA. The luminous efficiency was obtained to be 1.5 lm/W. The external quantum efficiency was estimated to be 2.4%, which is one of the highest efficiencies ever reported in blue emitting organic EL devices.

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Authors

  • Chishio Hosokawa

  • Hisahiro Higashi

  • Hiroaki Nakamura

  • Tadashi Kusumoto

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