Strong Exciton-Photon Coupling in a Nanographene Filled Microcavity

Abstract

Dibenzo[hi,st]ovalene (DBOV)-a quasi-zero-dimensional "nanographene"-displays strong, narrow, and well-defined optical-absorption transitions at room temperature. On placing a DBOV-doped polymer film into an optical microcavity, we demonstrate strong coupling of the 0 → 0' electronic transition to a confined cavity mode, with a coupling energy of 126 meV. Photoluminescence measurements indicate that the polariton population is distributed at energies approximately coincident with the emission of the DBOV, indicating a polariton population via an optical pumping mechanism.

Metadata

Authors/Creators:

Coles, D.M. https://orcid.org/0000-0003-4808-6395
Chen, Q.
Flatten, L.C.
Smith, J.M.
Müllen, K. https://orcid.org/0000-0001-6630-8786
Narita, A. https://orcid.org/0000-0002-3625-522X
Lidzey, D.G. https://orcid.org/0000-0002-8558-1160

Copyright, Publisher and Additional Information:

© 2017 American Chemical Society. This is an author produced version of a paper subsequently published in Nano Letters. Uploaded in accordance with the publisher's self-archiving policy.

Keywords:

Microcavity; nanographene; polaritons; strong coupling

Dates:

Published (online): 22 August 2017
Published: 2017

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 (EPSRC)	EP/M025330/1

Depositing User:

Symplectic Sheffield

Date Deposited:

05 Sep 2017 14:37

Last Modified:

28 Sep 2022 01:32

Published Version:

https://doi.org/10.1021/acs.nanolett.7b02211

Status:

Published

Publisher:

American Chemical Society

Refereed:

Yes

Identification Number:

https://doi.org/10.1021/acs.nanolett.7b02211

Related URLs:

Author

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