Description of charge transport in polyethylene using a fluid model with a constant mobility: fitting model and experiments

A numerical model for describing bipolar charge transport and storage in polyethylene has been developed recently. The present paper proposes a comparison of the model outputs with experimental data in three different direct current (DC) voltage application protocols (step field increase and polariz...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2006-04, Vol.39 (7), p.1427-1436
Main Authors: Le Roy, S, Teyssedre, G, Laurent, C, Montanari, G C, Palmieri, F
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Electronics
Engineering Sciences
Exact sciences and technology
Materials
Organic polymers
Physicochemistry of polymers
Properties and characterization
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Summary:A numerical model for describing bipolar charge transport and storage in polyethylene has been developed recently. The present paper proposes a comparison of the model outputs with experimental data in three different direct current (DC) voltage application protocols (step field increase and polarization/depolarization schemes). Three kinds of measurement have been realized for the three different protocols: space charge distribution using the pulsed electro-acoustic method, external current and electroluminescence. Simulation under AC stress has also been attempted on the basis of the model parameters that were derived from the DC case. Model limitations and possible improvements are discussed.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/39/7/014