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Differences in AC and DC Large-Area Breakdown Behavior of Polymer Thin Films

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


Original languageEnglish
Title of host publication2016 IEEE International Conference on Dielectrics (ICD)
Place of PublicationMontpellier, France
ISBN (Electronic)978-1-5090-2804-7
Publication statusPublished - 2016
Publication typeA4 Article in a conference publication
EventIEEE international conference on dielectrics -
Duration: 1 Jan 2000 → …


ConferenceIEEE international conference on dielectrics
Period1/01/00 → …


A large-area multiple breakdown measurement using self-healing gold sputtered electrodes was evaluated in determining the AC breakdown characteristics of insulating biaxially oriented polypropylene (BOPP) and BOPP-silica nanocomposite thin films. Results were compared with conventional small area measurements and it is shown that the large-area approach could be extended into AC measurements as long as good quality film-electrode interface in ensured. Special electrode arrangements are needed due to the absence of electrostatic force. AC small-area breakdown strength of pilot-scale films was ramp rate dependent but no such effect was clearly noticed for a commercial product. Conventional DC small-area breakdown measurements were also conducted and the results were compared to previously published large-area multiple breakdown data. The consistent results support the dependency between ramp rate and DC breakdown strength in the studied BOPP-silica nanocomposite.

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