Issue 43, 2019

Remarkable dielectric breakdown strength enhancement of a PVDF terpolymer using a 2D hybrid organic inorganic perovskite as a functional additive

Abstract

A two-dimensional hybrid perovskite, (PEA)2PbI4, is added as a functional additive to a dielectric PVDF terpolymer matrix to improve its dielectric strength. It is found that a trace amount of added (PEA)2PbI4 of 0.1 wt% gives rise to a 25% improvement in the DC dielectric breakdown strength of the polymer. Mechanistic study using terahertz time-domain spectroscopy reveals that the perovskite additive reduces the carrier density in the polymer matrix correspondingly, which is believed to be the main reason that leads to a large breakdown strength enhancement. This work presents not only a novel potential application of a 2D hybrid perovskite, but also a practical approach to modify polymeric dielectric materials for the achievement of excellent electrical insulating performance.

Graphical abstract: Remarkable dielectric breakdown strength enhancement of a PVDF terpolymer using a 2D hybrid organic inorganic perovskite as a functional additive

Supplementary files

Article information

Article type
Communication
Submitted
16 Jun 2019
Accepted
01 Oct 2019
First published
03 Oct 2019

J. Mater. Chem. C, 2019,7, 13390-13395

Remarkable dielectric breakdown strength enhancement of a PVDF terpolymer using a 2D hybrid organic inorganic perovskite as a functional additive

Y. Lu, D. Zhao, L. Yulia, H. Chen, X. Chen, Y. N. Liang, S. K. J. Lim, E. E. M. Chia, Z. Shen and X. Hu, J. Mater. Chem. C, 2019, 7, 13390 DOI: 10.1039/C9TC03220G

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