Journal
ADVANCED MATERIALS
Volume 25, Issue 17, Pages 2481-2485Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201203682
Keywords
work function; strong coupling; organic materials; surface plasmons; optical cavities
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Funding
- ERC through the project Plasmonics [GA-227557]
- ERC through the project Suprafunction [GA-257305]
- International Center for Frontier Research in Chemistry (icFRC, Strasbourg)
- European Science Foundation (ESF) under the EUROCORES Program EuroGRAPHENE (GOSPEL)
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The tuning of the molecular material work-function via strong coupling with vacuum electromagnetic fields is demonstrated. Kelvin probe microscopy extracts the surface potential (SP) changes of a photochromic molecular film on plasmonic hole arrays and inside Fabry-Perot cavities. Modulating the optical cavity resonance or the photochromic film effectively tunes the work-function, suggesting a new tool for tailoring material properties.
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