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Ultralong-Range Polariton-Assisted Energy Transfer in Organic Microcavities.


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 manuscript, 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.

SUBMITTER: Georgiou K 

PROVIDER: S-EPMC8361947 | biostudies-literature |

REPOSITORIES: biostudies-literature

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