Space charge, thermal expansion, and pyroelectricity in polymers
- 1 September 1976
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 47 (9) , 4206-4208
- https://doi.org/10.1063/1.323291
Abstract
The nonlinear thermal expansion of an insulating film containing trapped space charge leads to a reversible pyroelectric current. A general expression for the pyroelectric coefficient of such a system which also includes a contribution from a nonuniform dielectric constant is derived. A simplified expression applicable to insulators with small gradients is also derived and used to make an order-of-magnitude estimate of the pyroelectric coefficient of PVF2.This publication has 15 references indexed in Scilit:
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