Novel lead-free ferroelectric film by ultra-small Ba 0.8 Sr 0.2 TiO 3 nanocubes assembled for a large electrocaloric effect

作者：Ran Su, Dawei Zhang, Yang Liu, Jiangbo Lu, Zhipeng Wang, Linglong Li, Jihong Bian, Ming Wu, Xiaojie Lou, Yaodong Yang · 发表于：Physical Chemistry Chemical Physics · 年份：2016 · DOI：10.1039/c6cp05462e · 被引用次数：23 · 研究领域：Ferroelectric and Piezoelectric Materials、Multiferroics and related materials、Electronic and Structural Properties of Oxides

ceramics in terms of new collective ferroelectric properties, including superior and diffused permittivity constants and polarization-electric field loops. Benefiting from these unique ferroelectric properties, a giant ECE (9.1 K) over a broad temperature range (20 °C to 60 °C) is achieved, which is very large in the lead-free oxide film. Clearly, this bottom-up strategy provides a promising pathway for developing high electrocaloric effect devices.