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Thermoelectric measurements of PEDOT:PSS/expanded graphite composites

  • Energy Materials & Thermoelectrics
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Abstract

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)/expanded graphite films were cast as thin films with different expanded graphite contents at room temperature. The thermoelectric properties of the composites were investigated as a function of the graphite concentration. The electrical conductivity and Seebeck coefficient were measured as a function of the graphite concentration. The electrical conductivity and power factor show similar trends with a sharp increase at around 55 wt% of expanded graphite content. The Seebeck coefficient does not show a significant dependence with the graphite content. SEM and TEM images indicate a nearly homogenous distribution of the filler in the matrix. The initial thermal stability is not modified with the filler.

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Acknowledgements

The authors are grateful to the Ministry of Science and Innovation of Spain for financial support through Grant CSD2010-00044 of the Programme “Consolider Ingenio 2010.”

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Authors and Affiliations

  1. Materials Science Institute, University of Valencia, P.O. Box 22085, 46071, Valencia, Spain

    Mario Culebras, Clara M. Gómez & Andrés Cantarero

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  1. Mario Culebras
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  2. Clara M. Gómez
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  3. Andrés Cantarero
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Correspondence to Andrés Cantarero.

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Culebras, M., Gómez, C.M. & Cantarero, A. Thermoelectric measurements of PEDOT:PSS/expanded graphite composites. J Mater Sci 48, 2855–2860 (2013). https://doi.org/10.1007/s10853-012-6846-8

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  • DOI: https://doi.org/10.1007/s10853-012-6846-8

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