Dynamic pyroelectric enhancement of homogeneous ferroelectric materials

被引：9

作者：

Akcay, G

Zhong, S

Alpay, SP ^{[1
]}

Mantese, JV

机构：

[1] Univ Connecticut, Dept Mat Sci & Engn, Storrs, CT 06269 USA

[2] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA

[3] Delphi Res Labs, Shelby Township, MI 48315 USA

来源：

SOLID STATE COMMUNICATIONS | 2006年 / 137卷 / 11期

基金：

美国国家科学基金会;

关键词：

temperature graded ferroelectrics; dynamic pyroelectric response;

D O I：

10.1016/j.ssc.2006.01.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The time-dependent thermal response to a step-wise temperature increase of a ferroelectric plate of BaTiO3 of finite thickness was determined using a combination of basic heat transfer relations to model the temperature variation in the ferroelectric as a function of time and a thermodynamic model based on a modified Landau formalism to calculate the polarization profile due to the temperature gradient. An enhancement over the static pyroelectric response was revealed, having a maximum value of -0.01 mu C/cm(2) degrees C, for detector thicknesses in the range of 1 to 100 mu m. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：589 / 594

页数：6

共 23 条

[1] Thermodynamic analysis of temperature-graded ferroelectrics [J].