Pyroelectricity and Charge Transport in a Copolymer of Vinylidene Fluoride and Tetrafluorethylene.

Abstract

A copolymer of vinylidene fluoride and tetrafluoroethylene shows pyroelectric and piezoelectric effects after poling. Thermal pulsing measurements indicate that the polarization in this material is highly non-uniform. The piezo/pyroelectric response of this non-uniformly poled copolymer consists of two parts -- a rapid response that is the result of changes in internal polarization, and a delayed response due to reversible motion of real charge through the bulk of the material. This model explains previously reported observations of the independence of pyroelectric response over a wide range of poling conditions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1981
Accession Number
ADA105790

Entities

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  • A. S. Dereggi
  • G. T. Davis
  • M. G. Broadhurst
  • R. E. Collins
  • S. C. Roth

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  • National Institute of Standards and Technology

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  • Microelectronics - Microelectromechanical Systems