Issue 27, 2023

Strong light–matter coupling in pentacene thin films on plasmonic arrays

Abstract

Utilizing strong light–matter coupling is an elegant and powerful way to modify the energy landscapes of excited states of organic semiconductors. Consequently, the chemical and photophysical properties of these organic semiconductors can be influenced without the need of chemical modification but simply by implementing them in optical microcavities. This has so far mostly been shown in Fabry–Pérot cavities and with organic single crystals or diluted molecules in a host matrix. Here, we demonstrate strong, simultaneous coupling of the two Davydov transitions in polycrystalline pentacene thin films to surface lattice resonances supported by open cavities made of silver nanoparticle arrays. Such thin films are more easily fabricated and, together with the open architecture, more suitable for device applications.

Graphical abstract: Strong light–matter coupling in pentacene thin films on plasmonic arrays

Supplementary files

Article information

Article type
Paper
Submitted
09 Mar 2023
Accepted
18 Jun 2023
First published
19 Jun 2023

Nanoscale, 2023,15, 11707-11713

Strong light–matter coupling in pentacene thin films on plasmonic arrays

C. P. Theurer, F. Laible, J. Tang, K. Broch, M. Fleischer and F. Schreiber, Nanoscale, 2023, 15, 11707 DOI: 10.1039/D3NR01108A

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