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Difluorodithieno[3,2-a:2′,3′-c]phenazine as a strong acceptor for materials displaying thermally activated delayed fluorescence or room temperature phosphorescence

Cardeynaels, Tom; Paredis, Simon; Danos, Andrew; Harrison, Alastair; Deckers, Jasper; Brebels, Sonny; Lutsen, Laurence; Vanderzande, Dirk; Monkman, Andrew P.; Champagne, Benoît; Maes, Wouter

Difluorodithieno[3,2-a:2′,3′-c]phenazine as a strong acceptor for materials displaying thermally activated delayed fluorescence or room temperature phosphorescence Thumbnail


Authors

Tom Cardeynaels

Simon Paredis

Alastair Harrison

Jasper Deckers

Sonny Brebels

Laurence Lutsen

Dirk Vanderzande

Benoît Champagne

Wouter Maes



Abstract

A novel strong electron-acceptor unit, 9,10-difluorodithieno[3,2-a:2′,3′-c]phenazine (DTPz), is synthesized and applied in the design of two donor-acceptor type emitters displaying long-lived delayed emission. Using either 9,9-dimethyl-9,10-dihydroacridine (DMAC) or triisopropyl-substituted benzo[1,2-b:4,5-b']dithiophene (BDT-TIPS) as the donor component, push-pull type chromophores exhibiting charge-transfer emission are obtained and found to afford either thermally activated delayed fluorescence (TADF) for DMAC or room temperature phosphorescence (RTP) for BDT-TIPS.

Citation

Cardeynaels, T., Paredis, S., Danos, A., Harrison, A., Deckers, J., Brebels, S., …Maes, W. (2021). Difluorodithieno[3,2-a:2′,3′-c]phenazine as a strong acceptor for materials displaying thermally activated delayed fluorescence or room temperature phosphorescence. Dyes and Pigments, 190, https://doi.org/10.1016/j.dyepig.2021.109301

Journal Article Type Article
Acceptance Date Mar 7, 2021
Online Publication Date Mar 23, 2021
Publication Date 2021-06
Deposit Date Apr 8, 2021
Publicly Available Date Mar 28, 2024
Journal Dyes and Pigments
Print ISSN 0143-7208
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 190
DOI https://doi.org/10.1016/j.dyepig.2021.109301

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