Issue 6, 2023

Exciplex-induced TADF, persistent RTP and ML in a host–guest doping system

Abstract

The development of multifunctional luminescent materials is of great importance but really difficult, since different luminescent properties have different requirements for molecular structure. Herein, a universal exciplex platform was reported to construct multifunctional luminescent materials, including thermally-activated delayed fluorescence (TADF), persistent room temperature phosphorescence (RTP) and mechanoluminescence (ML). With compound PTZ-CN as an electron donor and its derivative of OPTZ-CN as an electron acceptor, the resultant exciplex system demonstrated efficient TADF with the quantum yield up to 61%, persistent RTP lasting for more than 3 minutes and bright blue ML emission. Thus, this work opens a new way to construct multifunctional luminescent materials, which will largely promote the further development of this research area.

Graphical abstract: Exciplex-induced TADF, persistent RTP and ML in a host–guest doping system

Supplementary files

Article information

Article type
Research Article
Submitted
21 nov 2022
Accepted
23 jan 2023
First published
26 jan 2023

Mater. Chem. Front., 2023,7, 1093-1099

Exciplex-induced TADF, persistent RTP and ML in a host–guest doping system

Y. Wang, M. Gao, J. Ren, J. Liang, Y. Zhao, M. Fang, J. Yang and Z. Li, Mater. Chem. Front., 2023, 7, 1093 DOI: 10.1039/D2QM01205G

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