Enhanced energy harvesting in commercial ferroelectric materials

被引：40

作者：

Patel, Satyanarayan ^{[1
]}

Chauhan, Aditya ^{[1
]}

Vaish, Rahul ^{[1
]}

机构：

[1] Indian Inst Technol Mandi, Sch Engn, Mandi 175001, Himachal Prades, India

来源：

MATERIALS RESEARCH EXPRESS | 2014年 / 1卷 / 02期

关键词：

Olsen cycle; electro-mechanical cycle; energy harvesting; ferroelectric; PZT;

D O I：

10.1088/2053-1591/1/2/025504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ferroelectric materials are used in a number of applications ranging from simple sensors and actuators to ferroelectric random access memories (FRAMs), transducers, health monitoring system and microelectronics. The multiphysical coupling ability possessed by these materials has been established to be useful for energy harvesting applications. However, conventional energy harvesting techniques employing ferroelectric materials possess low energy density. This has prevented the successful commercialization of ferroelectric based energy harvesting systems. In this context, the present study aims at proposing a novel approach for enhanced energy harvesting using commercially available ferroelectric materials. This technique was simulated to be used for two commercially available piezoelectric materials namely PKI-552 and APCI-840, soft and hard lead-zirconate-titanate (PZT) pervoskite ceramics, respectively. It was observed that a maximum energy density of 348 kJm(-3)cycle(-1) can be obtained for cycle parameters of (0-1 ton compressive stress and 1-25 kV. cm(-1) electric field) using APCI-840. The reported energy density is several hundred times larger than the maximum energy density reported in the literature for vibration harvesting systems.

引用

页数：10

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