Influence of optical material properties on strong coupling in organic semiconductor based microcavities

Laura Tropf, Christof P. Dietrich, Stefanie Herbst, Alexander L. Kanibolotsky, Peter J. Skabara, Frank Würthner, Ifor D. W. Samuel, Malte C. Gather, Sven Höfling

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Abstract

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.

Original languageEnglish
Article number153302
Number of pages5
JournalApplied Physics Letters
Volume110
Issue number15
DOIs
Publication statusPublished - 12 Apr 2017

Keywords

  • organic materials
  • polaritons
  • excitons
  • cavitation
  • organic semiconductors
  • optical properties
  • metal-clad microcavities
  • anisotropy

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    Tropf, L., Dietrich, C. P., Herbst, S., Kanibolotsky, A. L., Skabara, P. J., Würthner, F., ... Höfling, S. (2017). Influence of optical material properties on strong coupling in organic semiconductor based microcavities. Applied Physics Letters, 110(15), [153302]. https://doi.org/10.1063/1.4978646