Practical Notes on the Measurement and Interpretation of Thermally Stimulated Discharge Currents in Biaxially Oriented Polypropylene

Ilkka Rytöluoto, Minna Niittymaki, Kari Lahti

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The measurement and interpretation of high-field thermally stimulated depolarization current (TSDC) of capacitor-grade biaxially oriented polypropylene (BOPP) films are investigated in order to facilitate the derivation of trap parameters. Two main relaxations associable with the glass transition and detrapping of space charge from deep traps are observed, and their dependence on the polarization/depolarization conditions are studied. The complex bipolar nature of the space charge relaxation makes the derivation of trap parameters challenging. Lastly, a brief attempt is made to correlate the TSDC features with morphology and other short-term dielectric properties.
Original languageEnglish
Title of host publicationProceedings of the 26th Nordic Insulation Symposium, NORD-IS 19
Pages64-69
DOIs
Publication statusPublished - 8 Aug 2019
MoE publication typeA4 Article in a conference publication
Event26th Nordic Insulation Symposium on Materials, Components and Diagnostics, NORD-IS 19 - Tampere, Finland
Duration: 12 Jun 201914 Jun 2019
http://www.tut.fi/nordis19/

Publication series

SeriesProceedings of the Nordic Insulation Symposium
Volume26
ISSN2535-3969

Conference

Conference26th Nordic Insulation Symposium on Materials, Components and Diagnostics, NORD-IS 19
CountryFinland
CityTampere
Period12/06/1914/06/19
Internet address

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    Rytöluoto, I., Niittymaki, M., & Lahti, K. (2019). Practical Notes on the Measurement and Interpretation of Thermally Stimulated Discharge Currents in Biaxially Oriented Polypropylene. In Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19 (pp. 64-69). Proceedings of the Nordic Insulation Symposium, Vol.. 26 https://doi.org/10.5324/nordis.v0i26.3280