Issue 36, 2023

Understanding the temporal dynamics of thermally activated delayed fluorescence in solid hosts

Abstract

Thermally activated delayed fluorescence (TADF) emitters are the latest advance in seeking to achieve 100% internal quantum yield and even beat the dominant phosphorescent materials in commercial OLED devices. Though mostly having a rather simple structure, donor–acceptor-based TADF compounds demonstrate rather unexpected emission features solely in solid hosts, namely, temporal dynamics of emission spectra and prolonged delayed fluorescence lifetime. This article presents an overview of different approaches for analysing the untypical solid-state TADF dynamics, its implications in unexpected emission phenomena, as well as methods to mitigate its negative impact.

Graphical abstract: Understanding the temporal dynamics of thermally activated delayed fluorescence in solid hosts

Article information

Article type
Perspective
Submitted
04 Jul 2023
Accepted
18 Aug 2023
First published
25 Aug 2023

J. Mater. Chem. C, 2023,11, 12147-12155

Understanding the temporal dynamics of thermally activated delayed fluorescence in solid hosts

T. Serevičius, R. Skaisgiris, S. Tumkevičius, J. Dodonova-Vaitkūnienė and S. Juršėnas, J. Mater. Chem. C, 2023, 11, 12147 DOI: 10.1039/D3TC02347H

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