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Hybrid BaTiO3-PVDF Piezoelectric Composites for Vibration Energy Harvesting Applications

Published online by Cambridge University Press:  07 July 2011

Veronica Corral-Flores ,
Dario Bueno-Baqués  and
Ronald F Ziolo
Veronica Corral-Flores
Affiliation:
Research Center for Applied Chemistry, Enrique Reyna 140, Saltillo, 25253, Mexico
Dario Bueno-Baqués
Affiliation:
Research Center for Applied Chemistry, Enrique Reyna 140, Saltillo, 25253, Mexico
Ronald F Ziolo
Affiliation:
Research Center for Applied Chemistry, Enrique Reyna 140, Saltillo, 25253, Mexico
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Abstract

Hybrid piezoelectric composites were obtained by embedding barium titanate (BTO) nanofibers into a polyvinylidene fluoride (PVDF) matrix. Green BTO fibers were obtained by electrospinning a precursor polymeric solution under an electric field of 1 kV/cm. A network of non-woven ceramic BTO fibers was obtained after calcination of the green fibers. A PVDF solution was deposited over the ceramic fibers by spin-coating and then subjected to a low temperature heat treatment, to evaporate the solvent and promote the crystallization of the polar beta phase of PVDF.

In average, the diameter of the ceramic fibers ranged from 105 to 225 nm, presenting ribbon-like shape in some cases. Crystalline phases of BTO and PVDF were confirmed by X-ray diffraction and infrared spectroscopy, respectively. Polarization hysteresis curves revealed a ferroelectric behavior in all samples.

Keywords

compositeferroelectricfiber
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1325: Symposium E – Energy Harvesting—Recent Advances in Materials, Devices and Applications , 2011 , mrss11-1325-e02-07
Copyright
Copyright © Materials Research Society 2011

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References

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