High pyroelectric power generation of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 single crystal

被引：18

作者：

Ko, Young Joon ^{[1
]}

Park, Yong Keun ^{[1
]}

Yun, Byung Kil ^{[1
]}

Lee, Minbaek ^{[1
]}

Jung, Jong Hoon ^{[1
]}

机构：

[1] Inha Univ, Dept Phys, Inchon 402751, South Korea

来源：

CURRENT APPLIED PHYSICS | 2014年 / 14卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

Relaxor ferroelectric; PMN-PT; High-power pyroelectric generation; NANOGENERATORS;

D O I：

10.1016/j.cap.2014.08.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the pyroelectric power generation of a relaxor ferroelectric 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) (PMN-PT) single crystal. For a temperature variation rate of 0.5 K/s, the PMN-PT generated a closed-circuit current of 10 nA and an open-circuit voltage of 1.1 V at room temperature. The pyroelectric current and voltage of the PMN-PT single crystal were proportional to the temperature variation rate and were sharply enhanced near the structural phase-transition temperature. Additionally, the PMN-PT pyroelectric generator produced stable power for excessive thermal cycling and was highly sensitive to random thermal fluctuations. Our results indicate the potential importance of PMN-PT for high-power pyroelectric generator applications. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1486 / 1491

页数：6

共 22 条

[1] Piezoelectric and ferroelectric materials and structures for energy harvesting applications [J].