Issue 36, 2022

Construction and performance of OLED devices prepared from liquid-crystalline TADF materials

Abstract

The device performance is reported for three compounds which show both thermally activated delayed fluorescence and liquid crystallinity, and use the donor 3,6-bis(3,4-didodecyloxyphenyl)carbazole. Two of the compounds, whose photophysics were reported previously, are based on a terephthalonitrile acceptor. A third and new compound is based on an isophthalonitrile acceptor and shows a more temperature-accessible mesophase and enhanced solution emission quantum yield. Two of the compounds show device external quantum efficiencies of between 2–3% and exhibit very small efficiency roll off. The responses are evaluated in terms of the specific nature of the materials.

Graphical abstract: Construction and performance of OLED devices prepared from liquid-crystalline TADF materials

Supplementary files

Article information

Article type
Paper
Submitted
13 Jun 2022
Accepted
28 Aug 2022
First published
29 Aug 2022
This article is Open Access
Creative Commons BY license

Phys. Chem. Chem. Phys., 2022,24, 22115-22121

Construction and performance of OLED devices prepared from liquid-crystalline TADF materials

A. F. Suleymanova, M. Z. Shafikov, X. Chen, Y. Wang, R. Czerwieniec and D. W. Bruce, Phys. Chem. Chem. Phys., 2022, 24, 22115 DOI: 10.1039/D2CP02684H

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