Sensors | |
Temperature Field Analysis for PZT Pyroelectric Cells for Thermal Energy Harvesting | |
Chun-Ching Hsiao1  Jing-Chih Ciou1  An-Shen Siao1  | |
[1] Department of Mechanical Design Engineering, National Formosa University, No. 64, Wunhua Rd., Huwei Township, Yunlin County 632, Taiwan; E-Mails: | |
关键词: pyroelectricity; PZT; thermal energy; temperature variation rate; | |
DOI : 10.3390/s111110458 | |
来源: mdpi | |
【 摘 要 】
This paper proposes the idea of etching PZT to improve the temperature variation rate of a thicker PZT sheet in order to enhance the energy conversion efficiency when used as pyroelectric cells. A partially covered electrode was proven to display a higher output response than a fully covered electrode did. A mesh top electrode monitored the temperature variation rate and the electrode area. The mesh electrode width affected the distribution of the temperature variation rate in a thinner pyroelectric material. However, a pyroelectric cell with a thicker pyroelectric material was beneficial in generating electricity pyroelectrically. The PZT sheet was further etched to produce deeper cavities and a smaller electrode width to induce lateral temperature gradients on the sidewalls of cavities under homogeneous heat irradiation, enhancing the temperature variation rate.
【 授权许可】
CC BY
© 2011 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO202003190047638ZK.pdf | 1182KB | download |