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Linking traps to dielectric breakdown through charge dynamics for polymer nanocomposites

Linking traps to dielectric breakdown through charge dynamics for polymer nanocomposites
Linking traps to dielectric breakdown through charge dynamics for polymer nanocomposites
Polymer nanocomposites can change the density and/or energy of traps, suppress the accumulation of space charges, and enhance dielectric breakdown strength. It is of interest to reveal the influencing mechanism of trap properties on the dielectric breakdown of polymer nanocomposites. Results of thermally stimulated depolarization current and surface potential decay were reviewed, showing that incorporating a small amount of nanoparticles into a polymer can increase the density and/or energy of deep traps. Then, the relation between traps and dc breakdown field of several polymer nanocomposites were analyzed. It was found that the increase in the density and energy of deep traps contributes to the improved dielectric breakdown performance. The modifications of traps by nanoparticles and surface treatments affect the charge dynamics in the bulk of polymer nanocomposites. Then, the accumulation of space charges, the distortion of electric field, and the energy gain of free carriers are regulated to improve the performance of dielectric breakdown.
2777-2785
Li, Shengtao
e2d199c9-1c0c-40c8-aefb-ff3b3d8e4799
Min, Daomin
ab5f57d8-bd91-474d-a86d-b49bc2e713af
Wang, Weiwang
1c2c05f0-559c-4a74-a08d-fa00f760728c
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Li, Shengtao
e2d199c9-1c0c-40c8-aefb-ff3b3d8e4799
Min, Daomin
ab5f57d8-bd91-474d-a86d-b49bc2e713af
Wang, Weiwang
1c2c05f0-559c-4a74-a08d-fa00f760728c
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Li, Shengtao, Min, Daomin, Wang, Weiwang and Chen, George (2016) Linking traps to dielectric breakdown through charge dynamics for polymer nanocomposites. IEEE Transactions on Dielectrics and Electrical Insulation, 23 (5), 2777-2785. (doi:10.1109/TDEI.2016.7736837).

Record type: Article

Abstract

Polymer nanocomposites can change the density and/or energy of traps, suppress the accumulation of space charges, and enhance dielectric breakdown strength. It is of interest to reveal the influencing mechanism of trap properties on the dielectric breakdown of polymer nanocomposites. Results of thermally stimulated depolarization current and surface potential decay were reviewed, showing that incorporating a small amount of nanoparticles into a polymer can increase the density and/or energy of deep traps. Then, the relation between traps and dc breakdown field of several polymer nanocomposites were analyzed. It was found that the increase in the density and energy of deep traps contributes to the improved dielectric breakdown performance. The modifications of traps by nanoparticles and surface treatments affect the charge dynamics in the bulk of polymer nanocomposites. Then, the accumulation of space charges, the distortion of electric field, and the energy gain of free carriers are regulated to improve the performance of dielectric breakdown.

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Accepted/In Press date: 24 June 2016
Published date: 14 November 2016
Organisations: EEE

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Local EPrints ID: 403003
URI: http://eprints.soton.ac.uk/id/eprint/403003
PURE UUID: 3837416f-a538-436b-9040-c73ffd283e1e

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Date deposited: 21 Nov 2016 16:12
Last modified: 06 Oct 2020 22:12

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