The effect of poling conditions on the performance of piezoelectric energy harvesters fabricated by wet chemistry

被引：17
|
作者：
Fuentes-Fernandez, Erika M. A. [1 ]
Gnade, Bruce E. [1 ]
Quevedo-Lopez, Manuel A. [1 ]
Shah, Pradeep [2 ]
Alshareef, H. N. [3 ]
机构：
[1] Univ Texas Dallas, Richardson, TX 75080 USA
[2] Texas Micro Power Inc, Dallas, TX 75254 USA
[3] King Abdullah Univ Sci & Technol, Thuwal 239556900, Saudi Arabia
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2015年 / 3卷 / 18期
关键词：
LEAD-ZIRCONATE-TITANATE; PB(ZR; TI)O3; THIN-FILMS; PZT CERAMICS; GENERATOR; LAYER; MEMS;
D O I：
10.1039/c5ta00447k
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The effect of poling conditions on the power output of piezoelectric energy harvesters using sol-gel based Pb(Zr-0.53, Ti-0.47)O-3-Pb(Zn-1/3, Nb-2/3)O-3 piezoelectric thin-films has been investigated. A strong correlation was established between the poling efficiency and harvester output. A method based on simple capacitance-voltage measurements is shown to be an effective approach to estimate the power output of harvesters poled under different conditions. The poling process was found to be thermally activated with an activation energy of 0.12 eV, and the optimum poling conditions were identified (200 kV cm(-1), 250 degrees C for 50 min). The voltage output and power density obtained under optimum poling conditions were measured to be 558 V cm(-2) and 325 mu W cm(-2), respectively.
引用
收藏
页码：9837 / 9842
页数：6
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