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Authors: Neumann, Guido
Bihler, Eckardt
Eberle, Gernot
Eisenmenger, Wolfgang
Title: Polarization distribution in PVDF obtained by poling under constant current condition
Issue Date: 1990 Konferenzbeitrag 1990 annual report / Conference on Electrical Insulation and Dielectric Phenomena : October 28 - October 31, 1990. Piscataway, N.J. : IEEE Service Center, 1990, S. 96-101
Abstract: Since the resistivity of PVDE films increases when the films are poled, the voltage across the samples must be increased during the poling process in order to keep the current constant. Under these conditions, the formation of a polarization zone in the center of the film depth is observed. The thickness of the polarization-free zone close to the film surfaces is found to decrease with larger current densities. The results are consistent with a model assuming charge trapping in deep traps associated with the orientation of polar crystallites.
Appears in Collections:08 Fakultät Mathematik und Physik

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