Fluorescence and Phosphorescence Anisotropy from Oriented Films of Thermally Activated Delayed Fluorescence Emitters

Higginbotham, Heather F.; Etherington, Marc K.; Monkman, Andrew P.

Abstract

Anisotropy within three TADF materials has been observed using steady-state fluorescence polarisation. This technique has allowed for the observation of differences in polarisation within dilute solution, and both un-stretched and stretched films; the latter producing highly aligned molecules within the sample. Using these aligned films differences in anisotropy can be observed between the emission from the 1LE and 1CT states and upon exciting different absorption bands. Furthermore, polarisation observed from time-resolved measurements, highlights the strong vibronic coupling between charge-transfer and local triplet states.

Citation

Higginbotham, H. F., Etherington, M. K., & Monkman, A. P. (2017). Fluorescence and Phosphorescence Anisotropy from Oriented Films of Thermally Activated Delayed Fluorescence Emitters. Journal of Physical Chemistry Letters, 8(13), 2930–2935. https://doi.org/10.1021/acs.jpclett.7b00729

• Journal Article Type: Article
• Acceptance Date: May 26, 2017
• Online Publication Date: Jun 14, 2017
• Publication Date: Jul 6, 2017
• Deposit Date: May 31, 2017
• Publicly Available Date: May 26, 2018
• Journal: Journal of Physical Chemistry Letters
• Electronic ISSN: 1948-7185
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 13
• Pages: 2930–2935
• DOI: https://doi.org/10.1021/acs.jpclett.7b00729
• Public URL: https://durham-repository.worktribe.com/output/1356263