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Pyroelectric Materials: Scaling of Output Power With Dimensions and Substrate Clamping

[+] Author Affiliations
Jayasimha Atulasimha, J. Xie, M. Richeson, K. M. Mossi

Virginia Commonwealth University, Richmond, VA

Paper No. SMASIS2009-1371, pp. 213-219; 7 pages
doi:10.1115/SMASIS2009-1371
From:
  • ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
  • Volume 1: Active Materials, Mechanics and Behavior; Modeling, Simulation and Control
  • Oxnard, California, USA, September 21–23, 2009
  • Conference Sponsors: Aerospace Division
  • ISBN: 978-0-7918-4896-8 | eISBN: 978-0-7918-3857-0
  • Copyright © 2009 by ASME

abstract

An understanding of the power that can be harvested from pyroelectric materials and its dependence on material properties, geometry and boundary condition is crucial to the design of energy harvesting devices using these materials. In this paper, simple analytical expressions are developed for ideal voltage, power and power densities as a function of pyroelectric constant, permittivity, surface area, thickness, temperature variation and rate of change for unclamped samples. Experiments are performed to specifically study the effect of geometry and are compared with theoretical predictions.

Copyright © 2009 by ASME

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