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

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., Lutsen, L., Vanderzande, D., Monkman, A. P., Champagne, B., & 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 23, 2023
• 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
• Public URL: https://durham-repository.worktribe.com/output/1277849