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
    PublisherNordic Insulation Symposium
    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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