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Flexible piezoelectric nano-composite films for kinetic energy harvesting from textiles

Record type: Article

This paper details the enhancements in the dielectric and piezoelectric properties of a low-temperature screen-printable piezoelectric nano-composite film on flexible plastic and textile substrates. These enhancements involved adding silver nano particles to the nano-composite material and using an additional cold isostatic pressing (CIP) post-processing procedure. These developments have resulted in a 18% increase in the free-standing piezoelectric charge coefficient d33 to a value of 98 pC/N. The increase in the dielectric constant of the piezoelectric film has, however, resulted in a decrease in the peak output voltage of the composite film. The potential for this material to be used to harvest mechanical energy from a variety of textiles under compressive and bending forces has been evaluated theoretically and experimentally. The maximum energy density of the enhanced piezoelectric material under 800 N compressive force was found to be 34 J/m3 on a Kermel textile. The maximum energy density of the enhanced piezoelectric material under bending was found to be 14.3 J/m3 on a cotton textile. These results agree very favourably with the theoretical predictions. For a 10 cm x 10 cm piezoelectric element 100 ?m thick this equates to 38 ?J and 14.3 ?J of energy generated per mechanical action respectively which is a potentially useful amount of energy.

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Citation

Almusallam, Ahmed, Luo, Jerry, Komolafe, Abiodun, Yang, Kai, Robinson, Andrew and Beeby, Stephen (2017) Flexible piezoelectric nano-composite films for kinetic energy harvesting from textiles Nano Energy, 33, pp. 146-156. (doi:10.1016/j.nanoen.2017.01.037).

More information

Accepted/In Press date: 16 January 2017
e-pub ahead of print date: 17 January 2017
Published date: March 2017
Organisations: EEE

Identifiers

Local EPrints ID: 403387
URI: http://eprints.soton.ac.uk/id/eprint/403387
ISSN: 2211-2855
PURE UUID: 81e20e8e-017c-41a4-8922-fe94bd4d9f04
ORCID for Stephen Beeby: ORCID iD orcid.org/0000-0002-0800-1759

Catalogue record

Date deposited: 25 Jan 2017 09:26
Last modified: 17 Jul 2017 17:42

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Contributors

Author: Ahmed Almusallam
Author: Jerry Luo
Author: Abiodun Komolafe
Author: Kai Yang
Author: Andrew Robinson
Author: Stephen Beeby ORCID iD

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