A simplified approach to thermally activated delayed fluorescence (TADF) bipolar host polymers
Description
Organic Light Emitting Diodes (OLEDs) are a critical part of current consumer electronics, from mobile device displays to solid-state lighting. Thus demand for the development of industrially compatible OLED materials continues to increase. Herein, we introduce a series of solution-processible polymers incorporating a Thermally Activated Delayed Fluorescence (TADF) emitter and a host species in the side chain to finely adjust the charge transport properties. For balanced charge transport, a bipolar host polymer based on carbazole and α-carboline was investigated in addition to the commonly employed unipolar host mCP and an electron transporting version thereof. We demonstrate that the combination of unipolar co-hosts on one polymer chain can generate, with less synthetic effort, the same optoelectronic properties as a polymer carrying the corresponding bipolar host molecule as a pendant.
Impact and interest:
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| ID Code: | 233429 | ||||||||
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| Item Type: | Contribution to Journal (Journal Article) | ||||||||
| Refereed: | Yes | ||||||||
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| Additional Information: | Acknowledgements: C. B.-K., J. B., P. S., and S. Y. acknowledge funding in the context of an Australian Research Council (ARC) Linkage project LP170100387. C. B.-K. is grateful for an ARC Laureate Fellowship enabling his photochemical research program as well as continued key support from the Queensland University of Technology (QUT). P. S. is thankful for an ARC Future Fellowship. The Central Analytical Research Facility (CARF) at QUT is gratefully acknowledged for access to analytical instrumentation, supported by QUT's Research Portfolio (Research Infrastructure). The computations were enabled by resources provided by the Swedish National Infrastructure for Computing (SNIC), partially funded by the Swedish Research Council through grant agreement no. 2018-05973. | ||||||||
| Measurements or Duration: | 8 pages | ||||||||
| DOI: | 10.1039/D2PY00511E | ||||||||
| ISSN: | 1759-9954 | ||||||||
| Pure ID: | 112615456 | ||||||||
| Divisions: | Current > Research Centres > Centre for Materials Science Current > Research Centres > Centre for a Waste Free World Current > QUT Faculties and Divisions > Faculty of Science Current > Schools > School of Chemistry & Physics |
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| Copyright Owner: | The Royal Society of Chemistry 2022 | ||||||||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||||
| Deposited On: | 07 Jul 2022 04:57 | ||||||||
| Last Modified: | 29 May 2024 03:45 |
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