High field conduction and breakdown of ultra thin evaporated polypropylene films

Ochiai, Shizuyasu; Ogawa, T.; Takagi, T.; Kojima, K.; Ohashi, Asao; Ieda, Masayuki; Mizutani, Teruyoshi

doi:10.1109/ise.1994.514782

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…On a separate level, Ochiai [67] and Zheng [68] extended the study of polypropylene to extremely thin substrates: the former studied 6-8 nm thick PP evaporated on glass at fields of up to 1200 V/µm, and the latter worked with 140 nm films obtained by high-temperature spin coating and subsequent annealing, tested up to 550 V/µm. In both cases, hopping was identified as the dominating conduction mechanism, at least in a certain range of electric field, with tunneling becoming a better fit at the highest electric fields.…”

Section: Review Of Published Datamentioning

confidence: 99%

Electrical Conduction in Thin-Film Polypropylene Capacitors

Michelazzi,

Fabiani

2023

Energies

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Thin polypropylene films have played a strategic role in recent years because they are the dielectric of choice for high-energy-density and high-power-density DC-link capacitors, and have been extensively used in renewable energy and electric mobility applications. Currently, these capacitors operate at temperatures of up to 105 °C with electric fields of up to 200 V/µm, allowing high efficiency due to their low dissipation figures compared to other capacitor technologies. The rapid evolution of green energy applications demands higher energy and power density, with expected operating temperatures and electric fields of up to 115 °C and above 250 V/µm, respectively. Under such conditions, the insulation resistance of the capacitor becomes a key factor, as it may start to contribute to the dissipation of energy. A correct understanding of conduction phenomena within the dielectric is necessary for the design of new high-performance capacitors based on polypropylene film with reduced conduction losses. The scope of this review is to present and evaluate the theoretical and experimental works on thin biaxially oriented polypropylene (BOPP) films for capacitor applications with a focus on electrical conductivity at high electric field and temperature.

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Section: Review Of Published Datamentioning

confidence: 99%

Electrical Conduction in Thin-Film Polypropylene Capacitors

Michelazzi,

Fabiani

2023

Energies

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Space-charge electrets

Kressmann

Sessler

Gunther

1996

IEEE Trans. Dielect. Electr. Insul.

119

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A literature review on space-charge electrets, covering the time period 1987 to 1996, is presented. The review starts out with a discussion of new inorganic and organic electret materials which also includes silicon based single and double layers. This is followed by a review of recent work on methods for measuring charge distributions. New results obtained with these methods on a number of differently charged materials are surveyed, together with data for charge transport and charge decay. Of particular significance is the superb charge storage capability of silicon dioxide/silicon nitride double layers which was discovered only very recently. The review closes with a survey of new, or improved electret applications.

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High field conduction and breakdown of ultra thin evaporated polypropylene films

Cited by 2 publications

References 2 publications

Electrical Conduction in Thin-Film Polypropylene Capacitors

Electrical Conduction in Thin-Film Polypropylene Capacitors

Space-charge electrets

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