Giant room-temperature elastocaloric effect in ferroelectric ultrathin films.
basic_science · Level V
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- Record sourced from PubMed, PMID 25042767.
- Also identified by DOI 10.1002/adma.201401935.
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Abstract
Environmentally friendly ultrathin BaTiO3 capacitors can exhibit a giant stress-induced elastocaloric effect without hysteresis loss or Joule heating. By combining this novel elastocaloric effect with the intrinsic electrocaloric effect, an ideal refrigeration cycle with high performance (temperature change over 10 K with a wide working-temperature window of 60 K) at room temperature is proposed for future cooling applications.