The electrocaloric efficiency of ceramic and polymer films.

Defay, Emmanuel; Crossley, Sam; Kar-Narayan, Sohini; Moya, Xavier; Mathur, Neil D · Adv Mater · 2013

basic_science · Level V

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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.