Mitigation of conduction loss in a semi-crystalline polymer with high dielectric constant and high charge-discharge efficiency

Yash Thakur, Tian Zhang, Minren Lin, Q. M. Zhang, Meng H. Lean

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Dielectric materials with high electrical energy density, low loss, and high thermal stability are desirable for a broad range of modern power electronic systems. Here, we investigate the conduction mechanism at high temperatures and high fields in a semi-crystalline poly(tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride) (THV) terpolymer, which has been shown to be attractive for high temperature and high energy density capacitors. In order to suppress conduction at high temperature and high electric field, alumina (Al2O3) nanofillers were added to the THV polymer matrix. Experimental results show that the Al2O3 nanofillers are very effective in reducing the conduction current, and at 125°C nanocomposites exhibit more than two orders of magnitude reduction in conduction compared to the neat polymer. Continuum and particle simulations were carried out to understand the leakage conductivity, and simulation results agree very well with the measured data. Hopping conduction has been identified as the dominant conduction mechanism.

    Original languageEnglish (US)
    Title of host publicationProceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages59-63
    Number of pages5
    ISBN (Electronic)9781509028023
    DOIs
    Publication statusPublished - Aug 18 2016
    Event1st IEEE International Conference on Dielectrics, ICD 2016 - Montpellier, France
    Duration: Jul 3 2016Jul 7 2016

    Publication series

    NameProceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
    Volume1

    Other

    Other1st IEEE International Conference on Dielectrics, ICD 2016
    CountryFrance
    CityMontpellier
    Period7/3/167/7/16

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    All Science Journal Classification (ASJC) codes

    • Polymers and Plastics
    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering
    • Ceramics and Composites

    Cite this

    Thakur, Y., Zhang, T., Lin, M., Zhang, Q. M., & Lean, M. H. (2016). Mitigation of conduction loss in a semi-crystalline polymer with high dielectric constant and high charge-discharge efficiency. In Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016 (pp. 59-63). [7547543] (Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICD.2016.7547543