Issue 75, 2024

Multi-resonance thermally activated delayed fluorescence polymers for high-efficiency and narrowband solution-processed green OLEDs

Abstract

A series of green multi-resonance thermally activated delayed fluorescence polymeric emitters featuring conjugation-interrupted main chains were facilely prepared via metal-free superacid-catalyzed Friedel–Crafts polyhydroxyalkylation. These emitters exhibited photoluminescence quantum yields of up to 76% and small full-widths at half maximum of 35–38 nm in toluene. The corresponding solution-processed OLEDs achieved an excellent maximum external quantum efficiency of 19.4%, with CIE coordinates of (0.20, 0.62).

Graphical abstract: Multi-resonance thermally activated delayed fluorescence polymers for high-efficiency and narrowband solution-processed green OLEDs

Supplementary files

Article information

Article type
Communication
Submitted
05 Jul 2024
Accepted
21 Aug 2024
First published
22 Aug 2024

Chem. Commun., 2024,60, 10318-10321

Multi-resonance thermally activated delayed fluorescence polymers for high-efficiency and narrowband solution-processed green OLEDs

K. Xu, N. Li, H. Lin, Z. Ye, P. Jiang, J. Miao, X. Cao and C. Yang, Chem. Commun., 2024, 60, 10318 DOI: 10.1039/D4CC03349C

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