Combined Isothermal and Non-Isothermal Techniques to Analyze Charge Trapping and Stability in Insulating Materials

Combined Isothermal and Non-Isothermal Techniques to Analyze Charge Trapping and Stability in Insulating Materials

Taking into account the time-consuming trapping and detrapping of electric charge in insulating materials, a sequential protocol for the investigation the trapping sites and trapped charge stability is proposed. The method is demonstrated for Teflon FEP-A. Elemental peaks are obtained whose maxima s...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics Vol. 40; no. 11A; p. L1160
Main Authors: Neagu, Eugen R., Marat-Mendes, Jose N.
Format: Journal Article
Language:English
Published: 01-11-2001
Online Access:Get full text
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Summary:Taking into account the time-consuming trapping and detrapping of electric charge in insulating materials, a sequential protocol for the investigation the trapping sites and trapped charge stability is proposed. The method is demonstrated for Teflon FEP-A. Elemental peaks are obtained whose maxima shift with increasing field from 456 to 486 K and are characterized by activation energies that increase from 1.1 to 1.9 eV. The relaxation time of the trapped charge, at 523 K, increases as the amount of charge stored in the material decreases and explains the good charge stability for Teflon FEP-A electrets.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.40.L1160