Charge Trapping in Ferroelectric Polymers

Details Charge Trapping in Ferroelectric Polymers Charge Trapping in Ferroelectric Polymers

2009-02-25

arxiv.org/abs/0902.4473v1

Physics

Condensed Matter

Materials Science

6 pages, 3 figures

Scientific paper

Experimental results are presented on anomalous behavior of absorption currents in PVDF during the stepwise increase of the voltage applied through a corona. These results, supplemented with the dynamics of the time constant of the electret potential decay are consistent with a hypothesis assuming deep trapping of the charge carriers during the polarization buildup in ferroelectric polymers. Model calculations are made on distribution of the potential energy at the surface of the polarized crystallites proving that additional sites for the charge trapping are created there.

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