Issue 58, 2020, Issue in Progress
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RSC Advances

Flexible electrospun PVDF–BaTiO3 hybrid structure pressure sensor with enhanced efficiency

Sahar Kalani,a   Reza Kohandanib  and  Roohollah Bagherzadeh ORCID logo *acd  

* Corresponding authors

a Advanced Fibrous Materials LAB, Institute for Advanced Textile Materials and Technologies (ATMT), School of Advanced Materials and Processes, Amirkabir University of Technology, Tehran, Iran
E-mail: Bagherzadeh_r@aut.ac.ir

b Department of Electrical and Computer Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, Canada

c Institute for Frontier Materials (IFM), Deakin University, Geelong, VIC, Australia

d The School of Textiles, Donghua University (DHU), Shanghai, China

Abstract

Ceramic doped-polymer structures as organic and inorganic hybrid structures constitute a new area of advanced materials for flexible and stretchable sensors and actuators. Here, uniform ceramic-polymer composites of tetragonal BaTiO3 and polyvinylidene fluoride (PVDF) were prepared using solution casting to improve the pressure sensitivity. By introducing Ba–TiO3 nanoparticles to PVDF nanofibers, piezoelectricity and pressure sensitivity of hybrid nanofiber mats were significantly improved. In addition, we proposed a novel flexible and stretchable multilayered pressure sensor composed of electrospun nanocomposite fibers with high electrical sensitivity up to 6 mV N−1 compared to 1.88 mV N−1 for the pure PVDF sensors upon the application of cyclic loads at 2.5 Hz frequency and a constant load of 0.5 N. Indeed, this work provides a composition-dependent approach for the fabrication of nanostructures for pressure sensors in a wide variety of wearable devices and technologies.

Graphical abstract: Flexible electrospun PVDF–BaTiO3 hybrid structure pressure sensor with enhanced efficiency

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Article information

DOI
https://doi.org/10.1039/D0RA05675H
Article type
Paper
Submitted
29 Jun 2020
Accepted
01 Sep 2020
First published
22 Sep 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 35090-35098

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Flexible electrospun PVDF–BaTiO3 hybrid structure pressure sensor with enhanced efficiency

S. Kalani, R. Kohandani and R. Bagherzadeh, RSC Adv., 2020, 10, 35090 DOI: 10.1039/D0RA05675H

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