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New Hole-Transport Materials Composed of Indenocarbazole-Based Copolymer for Ultra-High-Efficiency Solution-Processed OLED

Research output: Contribution to journalConference articlepeer-review

Abstract

New hole transport indenocarbazole based copolymers, KHU-HTL1 and KHU-HTL2, were found to have good solubility, intermediate HOMO levels, especially good charge transport properties due to low hole reorganization energy. Subsequently, the device with KHU-HTL1 showed a maximum current efficiency up to 100.4 cd/A. To the best of our knowledge, the efficiency value we achieved from the solution processed green phosphorescent OLEDs with this material is one of the best efficiency realized from solution-processed OLED.

Original languageEnglish
Pages (from-to)1517-1520
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume53
Issue number1
DOIs
Publication statusPublished - 2022
Event59th International Symposium, Seminar and Exhibition, Display Week 2022 - San Jose, United States
Duration: 8 May 202213 May 2022

Bibliographical note

Publisher Copyright:
© 2022. John Wiley and Sons Inc. AIAA. All rights reserved.

Keywords

  • Efficient solution-processed OLED
  • indenocarbazole-based hole transport copolymer
  • reorganization energy

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