C1‑, C2‑, and C3-Modified Carbazole Derivatives as Promising Host Materials for Phosphorescent Organic Light-Emitting Diodes

Herein we unveiled the synthetic approach to C1-, C2-, and C3-modified carbazoles for the first time and designed high-triplet-energy bipolar host materials for green phosphorescent organic light-emitting devices. The compounds revealed excellent performance with a maximum external quantum efficienc...

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Bibliographic Details
Published in:Organic letters 2020-04, Vol.22 (7), p.2786-2790
Main Authors: Konidena, Rajendra Kumar, Chung, Won Jae, Lee, Jun Yeob
Format: Article
Language:English
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Summary:Herein we unveiled the synthetic approach to C1-, C2-, and C3-modified carbazoles for the first time and designed high-triplet-energy bipolar host materials for green phosphorescent organic light-emitting devices. The compounds revealed excellent performance with a maximum external quantum efficiency as high as 23.6% and extremely low-efficiency roll-off of 2.1% at high brightness of 1000 cd/m2.
ISSN:1523-7060
1523-7052
DOI:10.1021/acs.orglett.0c00767