Influence of optical material properties on strong coupling in organic semiconductor based microcavities
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The optical properties of organic semiconductors are generally characterised by a number of material specific parameters, including absorbance, photoluminescence quantum yield, Stokes shift and molecular orientation. Here, we study four different organic semiconductors and compare their optical properties to the characteristics of the exciton-polaritons that are formed when these materials are introduced into metal-clad microcavities. We find that the strength of coupling between cavity photons and excitons is clearly correlated with the absorptivity of the material. In addition, we show that anisotropy strongly affects the characteristics of the formed exciton-polaritons.
Tropf , L C , Dietrich , C P , Herbst , S , Kanibolotsky , A L , Skabara , P J , Würthner , F , Samuel , I D W , Gather , M C & Höfling , S 2017 , ' Influence of optical material properties on strong coupling in organic semiconductor based microcavities ' Applied Physics Letters .
Applied Physics Letters
© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at aip.scitation.org/journal/apl/
We acknowledge financial support from the European Research Council (ERC StG 640012), the Scottish Funding Council (through SUPA), the studentship funding through the EPSRC CM-CDT (EP/L015110/1) and the EPSRC Hybrid Polaritonics program grant (EP/M025330/1). I. D. W. Samuel and P. J. Skabara each acknowledge support from a Royal Society Wolfson Research Merit Award. A. L. Kanibolotsky thanks the EPSRC for funding (EP/I029141).
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