Georgiou, K., Jayaprakash, R., Othonos, A. et al. (1 more author) (2021) Ultralong-range polariton-assisted energy transfer in organic microcavities. Angewandte Chemie International Edition, 60 (30). pp. 16661-16667. ISSN 1433-7851
Abstract
Non-radiative energy transfer between spatially-separated molecules in a microcavity can occur when an excitonic state on both molecules are strongly-coupled to the same optical mode, forming so-called ‘hybrid’ polaritons. Such energy transfer has previously been explored when thin-films of different molecules are relatively closely spaced (~100 nm). In this letter, we explore strong-coupled microcavities in which thin-films of two J-aggregated molecular dyes were separated by a spacer layer having a thickness of up to 2 μm. Here, strong light-matter coupling and hybridisation between the excitonic transition is identified using white-light reflectivity and photoluminescence emission. We use steady-state spectroscopy to demonstrate polariton-mediated energy transfer between such coupled states over ‘mesoscopic distances’, with this process being enhanced compared to non-cavity control structures.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/4.0/) which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | Polaritons; Microcavity; Energy transfer; Organic semiconductor; J-aggregates |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/M025330/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 May 2021 09:26 |
Last Modified: | 21 Feb 2022 12:22 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/anie.202105442 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:174332 |
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