Journal
NANO LETTERS
Volume 17, Issue 9, Pages 5521-5525Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b02211
Keywords
Micro cavity; nanographene; strong coupling; polaritons
Categories
Funding
- UK EPSRC [EP/M025330/1]
- Max Planck Society
- European Commission through the Graphene Flagship
- European Commission (project WASPS) [618078]
- Engineering and Physical Sciences Research Council [EP/M025330/1] Funding Source: researchfish
- EPSRC [EP/M025330/1] Funding Source: UKRI
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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.
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