Journal of Industrial and Engineering Chemistry

  • Volume 66
  • /
  • Pages.381-386
  • /
  • 2018
  • /
  • 1226-086X(pISSN)
  • /
  • 1876-794X(eISSN)
The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Bipolar type indolocarbazole host for green phosphorescent organic light-emitting diodes

  • Im, Yirang (School of chemical and Engineering, Sunkyunkwan University) ;
  • Han, Si Hyun (School of chemical and Engineering, Sunkyunkwan University) ;
  • Lee, Jun Yeob (School of chemical and Engineering, Sunkyunkwan University)
  • Received : 2018.04.10
  • Accepted : 2018.06.06
  • Published : 2018.10.25
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Abstract

A bipolar host designed using indolocarbazole as a bipolar moiety was developed by coupling two indolocarbazole moieties via a phenyl linker. The indolocarbazole derived hosts could carry holes and electrons in the emitting layer, functioning as bipolar hosts in the green phosphorescent organic light-emitting diodes. The linker based molecular design was superior to the directly coupled molecular design to match carrier balance for high quantum efficiency in the green phosphorescent devices.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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