Study of conductivity of the poly(3-hexylthiophene-2, 5-diyl) polymer (P3HT) in resonant Fabry-Perot cavities

J. K. Asane; V. N. Peters; R. Alexander; T. Wallace; D. A. Peters; M. A. Noginov

doi:10.1117/12.2323925

24 September 2018 Study of conductivity of the poly(3-hexylthiophene-2, 5-diyl) polymer (P3HT) in resonant Fabry-Perot cavities

J. K. Asane, V. N. Peters, R. Alexander, T. Wallace, D. A. Peters, M. A. Noginov

Author Affiliations +

Proceedings Volume 10719, Metamaterials, Metadevices, and Metasystems 2018; 1071934 (2018) https://doi.org/10.1117/12.2323925
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

Enhancing electrical conductance in organic semiconductors has been a focus of intense research over last few decades. The improvement can be made by optimizing either the material or the device architecture. As it has been shown in [Orgiu et al., Nature Materials, 2015], strong coupling of organic molecules with a nanostructured plasmonic substrate can significantly improve the molecules’ electrical conductivity. In the present study, we searched for the effect of strong coupling with a Fabry-Perot cavity on the conductivity of the semiconducting Poly (3- hexylthiophene) (P3HT) polymer. Despite the observation of the strong coupling evidenced by a very large Rabi splitting of 1.0 eV, the increase of electrical conductivity with increase of the P3HT film thickness was primarily affected by an increase of the polymer’s order in thick P3HT films.

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J. K. Asane, V. N. Peters, R. Alexander, T. Wallace, D. A. Peters, and M. A. Noginov "Study of conductivity of the poly(3-hexylthiophene-2, 5-diyl) polymer (P3HT) in resonant Fabry-Perot cavities", Proc. SPIE 10719, Metamaterials, Metadevices, and Metasystems 2018, 1071934 (24 September 2018); https://doi.org/10.1117/12.2323925

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