Flexible piezoelectric nano-composite films for kinetic energy harvesting from textiles
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).
Other Flexible PE nano-composite films for KE harvesting from textiles_revised.docx
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Restricted to Repository staff only until 17 January 2018.
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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.
|Digital Object Identifier (DOI):||doi:10.1016/j.nanoen.2017.01.037|
|Date Deposited:||25 Jan 2017 09:26|
|Last Modified:||10 Mar 2017 11:04|
Energy Harvesting Materials for Smart Fabrics and Interactive Textiles
Funded by: EPSRC (EP/I005323/1)
Led by: Stephen Paul Beeby
1 October 2010 to 30 September 2015
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