Electrocaloric Effect of P(VDF-TrFE)/SrTiO3 Bilayer Thin Films

被引：2

作者：

Qiu Jian-Hua ^{[1
,2
,3
]}

Ding Jian-Ning ^{[1
,2
,3
]}

Yuan Ning-Yi ^{[1
,3
]}

Wang Xiu-Qin ^{[1
,2
,3
]}

机构：

[1] Changzhou Univ, Ctr Low Dimens Mat Micronano Devices & Syst, Changzhou 213164, Peoples R China

[2] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Peoples R China

[3] Jiangsu Key Lab Solar Cell Mat & Technol, Changzhou 213164, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2013年 / 59卷 / 01期

基金：

中国国家自然科学基金;

关键词：

bilayer thin film; polymer; electrocaloric effect; FERROELECTRIC-PARAELECTRIC BILAYERS; ORIENTATION DEPENDENCE; MULTILAYERS;

D O I：

10.1088/0253-6102/59/1/21

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A phenomenological thermodynamic theory is applied to investigate the effect of misfit strain and electric field on the electrocaloric effect of P(VDF-TrFE)/SrTiO3 bilayer thin films. Theoretical results indicate that the low electric field results in the decrease of the average polarization with the increase of the relative thickness of SrTiO3 layer, and the high electric field has an opposite effect on it. Moreover, the electrocaloric effect strongly depends on the electric field. The low electric field and the small field change can lead to a maximum of the electrocaloric effect, meanwhile the high electric field or the large field change results in the opposite trend.

引用

收藏

页码：117 / 120

页数：4

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