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- Title
Temperature Field Analysis for PZT Pyroelectric Cells for Thermal Energy Harvesting.
- Authors
Chun-Ching Hsiao; Jing-Chih Ciou; An-Shen Siao; Chi-Yuan Lee
- Abstract
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.
- Subjects
PYROELECTRICITY; HEAT storage; ENERGY harvesting; IRRADIATION; ELECTRODES
- Publication
Sensors (14248220), 2011, Vol 11, Issue 11, p10458
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s111110458