Polarization and space charge distribution in thermally poled polyethylene and a comparison with polyvinylidene fluoride

Sidney B. Lang, D. K. Das-Gupta

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Electroded and annealed polyethylene films were thermally poled and the recently developed Laser Intensity Modulation Method (LIMM) was used to measure the spatial distributions of both polarization and space charge through the thickness of the samples. Polarization due to the orientation of impurity dipoles and trapped space charge interacted in a complex manner to produce the pyroelectric currents excited by laser beam heating of the electrets. Comparisons are made with results obtained on thermally poled polyvinylidene fluoride.

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalIEEE Transactions on Electrical Insulation
VolumeEI-21
Issue number3
DOIs
StatePublished - 1 Jan 1986

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