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Title: | Difluorodithieno[3,2-a:2′ ,3′ -c]phenazine as a strong acceptor for materials displaying thermally activated delayed fluorescence or room temperature phosphorescence | Authors: | CARDEYNAELS, Tom PAREDIS, Simon Danos, Andrew Harrison, Alastair DECKERS, Jasper BREBELS, Sonny LUTSEN, Laurence VANDERZANDE, Dirk Monkman, Andrew P. Champagne, Benoît MAES, Wouter |
Issue Date: | 2021 | Publisher: | ELSEVIER SCI LTD | Source: | Dyes and Pigments, 190 (Art N° 109301) | Abstract: | Thermally activated delayed fluorescence Room temperature phosphorescence Charge-transfer emission Quantum-chemical calculations Time-resolved spectroscopy A B S T R A C T 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. | Keywords: | 9;10-difluorodithieno[3;2-a:2′;3′-c]phenazine;Thermally activated delayed fluorescence;Room temperature phosphorescence;Charge-transfer emission;Quantum-chemical calculations;Time-resolved spectroscopy | Document URI: | http://hdl.handle.net/1942/34386 | ISSN: | 0143-7208 | e-ISSN: | 1873-3743 | DOI: | 10.1016/j.dyepig.2021.109301 | ISI #: | WOS:000647788900007 | Rights: | 2021 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2022 |
Appears in Collections: | Research publications |
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File | Description | Size | Format | |
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1-s2.0-S0143720821001686-main.pdf Restricted Access | Published version | 4.39 MB | Adobe PDF | View/Open Request a copy |
Revised_manuscript_Cardeynaels_et_al_Dyes_Pigm_190_2021_109301.pdf | Peer-reviewed author version | 1.29 MB | Adobe PDF | View/Open |
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