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Energy Harvesting by Pyroelectric Effect Using PZT

[+] Author Affiliations
J. Xie, P. P. Mane, C. W. Green, K. M. Mossi

Virginia Commonwealth University, Richmond, VA

Kam K. Leang

University of Nevada - Reno, Reno, NV

Paper No. SMASIS2008-605, pp. 273-277; 5 pages
  • ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2
  • Ellicott City, Maryland, USA, October 28–30, 2008
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4332-1 | eISBN: 978-0-7918-3839-6
  • Copyright © 2008 by ASME


This paper considers energy harvesting using pyroelectric materials such as PZT-5A and thin-films. A simple model is used to predict the power generated based on the measured temperature of the material as a function of time. The measured and predicted results are presented and compared. In particular, the measured peak power density for a PZT-5A sample was 0.23 μWcm−2 for a maximum temperature rate of approximately 15 °Cs−1 . The predicted peak power density under the same boundary conditions for thin-film lead scandium tantalate was over 125 μWcm−2 . The power density is shown to be highly dependent upon the surface area and the pyroelectric coefficient, underlining the importance of maximizing these parameters.

Copyright © 2008 by ASME



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