Effects of aging on thermally stimulated currents in poly(vinylidene fluoride)
作者:
E. J. Sharp,
L. E. Garn,
期刊:
Applied Physics Letters
(AIP Available online 1976)
卷期:
Volume 29,
issue 8
页码: 480-482
ISSN:0003-6951
年代: 1976
DOI:10.1063/1.89129
出版商: AIP
数据来源: AIP
摘要:
We have measured the total current [a sum of the thermally stimulated current (TSC) and the pyroelectric current] released as a function of temperature at a constant heating rate for numerous samples of poly(vinylidene fluoride) (PVF2) films which were poled in an electric field under a variety of conditions. An analysis of this data reveals significant changes in the TSC curves of room‐temperature–poled PVF2samples as a function of rest time after poling. The possible relaxation processes accounting for these changes are discussed. The pyroelectric response of these films has also been determined and a pyroelectric coefficient of 2.5×10−9C/cm2 °K has been obtained for room‐temperature–poled samples.
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