Mechanical Energy Harvesting Performance of Ferroelectric Polymer Nanowires Grown via Template-Wetting.

Whiter, Richard A; Boughey, Chess; Smith, Michael; Kar-Narayan, Sohini

Mechanical Energy Harvesting Performance of Ferroelectric Polymer Nanowires Grown via Template-Wetting.

cam.issuedOnline	2018-02-16
cam.orpheus.success	Thu Jan 30 13:04:31 GMT 2020 - The item has an open VoR version.
dc.contributor.author	Whiter, Richard A
dc.contributor.author	Boughey, Chess
dc.contributor.author	Smith, Michael
dc.contributor.author	Kar-Narayan, Sohini
dc.contributor.orcid	Boughey, Chess [0000-0002-7064-8318]
dc.contributor.orcid	Smith, Michael [0000-0003-0270-9438]
dc.contributor.orcid	Kar-Narayan, Sohini [0000-0002-8151-1616]
dc.date.accessioned	2018-02-27T17:32:59Z
dc.date.accessioned	2018-05-29T13:23:01Z
dc.date.available	2018-02-27T17:32:59Z
dc.date.available	2018-05-29T13:23:01Z
dc.date.issued	2018-05
dc.description.abstract	Nanowires of the ferroelectric co-polymer poly(vinylidenefluoride-co-triufloroethylene) [P(VDF-TrFE)] are fabricated from solution within nanoporous templates of both "hard" anodic aluminium oxide (AAO) and "soft" polyimide (PI) through a facile and scalable template-wetting process. The confined geometry afforded by the pores of the templates leads directly to highly crystalline P(VDF-TrFE) nanowires in a macroscopic "poled" state that precludes the need for external electrical poling procedure typically required for piezoelectric performance. The energy-harvesting performance of nanogenerators based on these template-grown nanowires are extensively studied and analyzed in combination with finite element modelling. Both experimental results and computational models probing the role of the templates in determining overall nanogenerator performance, including both materials and device efficiencies, are presented. It is found that although P(VDF-TrFE) nanowires grown in PI templates exhibit a lower material efficiency due to lower crystallinity as compared to nanowires grown in AAO templates, the overall device efficiency was higher for the PI-template-based nanogenerator because of the lower stiffness of the PI template as compared to the AAO template. This work provides a clear framework to assess the energy conversion efficiency of template-grown piezoelectric nanowires and paves the way towards optimization of template-based nanogenerator devices.
dc.format.medium	Print-Electronic
dc.identifier.doi	10.17863/CAM.23548
dc.identifier.eissn	2194-4296
dc.identifier.issn	2194-4288
dc.identifier.uri	https://www.repository.cam.ac.uk/handle/1810/276264
dc.language	eng
dc.language.iso	eng
dc.publisher	Wiley
dc.publisher.url	http://dx.doi.org/10.1002/ente.201700820
dc.relation.replaces	https://www.repository.cam.ac.uk/handle/1810/273599
dc.relation.replaces	1810/273599
dc.rights	Attribution 4.0 International
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.subject	ferroelectric polymers
dc.subject	finite element modelling
dc.subject	nanogenerators
dc.subject	nanowires
dc.subject	template wetting
dc.title	Mechanical Energy Harvesting Performance of Ferroelectric Polymer Nanowires Grown via Template-Wetting.
dc.type	Article
dcterms.dateAccepted	2017-12-14
prism.endingPage	934
prism.issueIdentifier	5
prism.publicationDate	2018
prism.publicationName	Energy Technol (Weinh)
prism.startingPage	928
prism.volume	6
pubs.funder-project-id	European Research Council (639526)
pubs.funder-project-id	Engineering and Physical Sciences Research Council (EP/G037221/1)
rioxxterms.licenseref.startdate	2018-05
rioxxterms.licenseref.uri	http://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.type	Journal Article/Review
rioxxterms.version	VoR
rioxxterms.versionofrecord	10.1002/ente.201700820