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The Electrocaloric Efficiency of Ceramic and Polymer Films

Authors

  • Emmanuel Defay,

    1. CEA, LETI, Minatec Campus, 17 Rue des Martyrs, 38054 Grenoble, France
    2. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • Sam Crossley,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • Sohini Kar-Narayan,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
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  • Xavier Moya,

    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
    2. Facultat de Física, Departament d'Estructura i Constituents de la Matèria, Universitat de Barcelona, Martí i Franquès 1, E-08028 Barcelona, Catalonia, Spain
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  • Neil D. Mathur

    Corresponding author
    1. Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK
    • Department of Materials Science, University of Cambridge, Cambridge, CB2 3QZ, UK.
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Abstract

Efficiency is defined as η = |Q|/|W| in order to investigate the electrical work |W| associated with electrocaloric heat |Q|. This materials parameter indicates that polymer films are slightly more energy efficient than ceramic films, and therefore both species of material remain candidates for future cooling applications.

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