Giant negative electrocaloric effect in antiferroelectric La-modified PbZrO3 thin films within wide temperature range

Wenping Geng,Dongwan Zheng,Xiaojun Qiao,Xiangjian Wang,Le Zhang,Kaixi Bi,Jian He,Xiujian Chou

Journal of Alloys and Compounds（2021）

引用 4|浏览1

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摘要

•Negative electrocaloric effect (ECE) could be obtained in PLZ thin films within wide temperature range (213–493 K).•Giant negative ECE (ΔT ≈ −13.2 K) and entropy change (ΔS ≈ −11.5 J K−1 kg−1) could be obtained in PLZ thin films.•The combination between negative and positive ECE promotes cooling efficiency during electrical bias processing.

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关键词

Antiferroelectric,Negative electrocaloric effect,Composite electrode,Sol-gel

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