Relaxor Ferroelectric-Based Electrocaloric Polymer Nanocomposites with a Broad Operating Temperature Range and High Cooling Energy

被引：174

作者：

Li, Qi ^{[1
]}

Zhang, Guangzu ^{[1
,2
]}

Zhang, Xiaoshan ^{[1
]}

Jiang, Shenglin ^{[2
]}

Zeng, Yike ^{[2
]}

Wang, Qing ^{[1
]}

机构：

[1] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[2] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Hubei, Peoples R China

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 13期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

SOLID-STATE REFRIGERATION; ROOM-TEMPERATURE; THIN-FILM;

D O I：

10.1002/adma.201405495

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrocaloric nanocomposites simultaneously derive high electrocaloric strength from inorganic inclusions and high dielectric strength from the polymer matrix to display a pronounced electrocaloric effect (ECE). By designing the inorganic filler and polymer matrix, which are both relaxor ferroelectrics with the ambient-temperature phase transition and minimized hysteresis, a large ECE becomes accessible with high cooling efficiency over a broad temperature range at and near room temperature.

引用

页码：2236 / +

页数：7

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