Issue 5, 2013

Largely enhanced energy density in flexible P(VDF-TrFE) nanocomposites by surface-modified electrospun BaSrTiO3 fibers

Abstract

By using Bi2O3-doped Ba0.3Sr0.7TiO3 (BSBT) fibers prepared via electrospinning and modified by dopamine as dielectric fillers, BSBT/P(VDF-TrFE) flexible nanocomposites are fabricated by solution casting. A low loading of BSBT nanofibers leads to a large increase in the dielectric constant and breakdown strength. In particular, the discharged energy density of the nanocomposites is significantly enhanced several times in comparison with the pure polymer matrix. The enhanced breakdown strength and discharged energy density could be attributed to the combined effects of the surface modification, large aspect ratio and paraelectric polarization behavior of the BSBT fibers. The present work indicates the enhancing potential of energy density on the polymer–ceramic composite by the paraelectric nanofiber fillers.

Graphical abstract: Largely enhanced energy density in flexible P(VDF-TrFE) nanocomposites by surface-modified electrospun BaSrTiO3 fibers

Supplementary files

Article information

Article type
Paper
Submitted
02 Nov 2012
Accepted
23 Nov 2012
First published
23 Nov 2012

J. Mater. Chem. A, 2013,1, 1688-1693

Largely enhanced energy density in flexible P(VDF-TrFE) nanocomposites by surface-modified electrospun BaSrTiO3 fibers

P. Hu, Y. Song, H. Liu, Y. Shen, Y. Lin and C. Nan, J. Mater. Chem. A, 2013, 1, 1688 DOI: 10.1039/C2TA00948J

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