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dc.contributor.authorYang, Bin
dc.contributor.authorMeng, Nan
dc.contributor.authorXintong, Ren
dc.contributor.authorZhu, Xiaojing
dc.contributor.authorWu, Jiyue
dc.contributor.authorGao, Feng
dc.contributor.authorZhang, Han
dc.contributor.authorLiao, Yaozu
dc.contributor.authorBilotti, Emiliano
dc.contributor.authorReece, Michael
dc.contributor.authorYang, Haixue
dc.date.accessioned2020-11-05T12:03:28Z
dc.date.available2020-11-05T12:03:28Z
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/623931/d0tc04310a.pdf?sequence=4
dc.identifier.citationMeng, N., Ren, X., Zhu, X., Wu, J., Yang, B., Gao, F., Zhang, H., Liao, Y., Bilotti, E., Reece, M. & Yan, H. (2020). Multiscale understanding of Electric Polarisation in Poly(vinylidene fluoride)- Based Ferroelectric Polymers. Journal of Materials Chemistry C, advance articleen_US
dc.identifier.urihttp://hdl.handle.net/10034/623931
dc.description.abstractPoly(vinylidene fluoride) (PVDF) and PVDF-based copolymers with trifluoroethylene (PVDF-TrFE) have attracted considerable academic and industrial interest due to their ferroelectric properties, which are only presented in very few polymers. However, the underlying fundamentals of molecular ordering and induced polarizations are complex and not fully understood. Herein, PVDF, PVDF-TrFE and their blends, prepared using melt extrusion and hot pressing, have been selected to obtain controlled case studies with well-defined chain ordering and microstructures. Impedance analysis and terahertz time-domain spectroscopy are exploited to investigate electric polarization in PVDF-based polymers at different length scales. The extruded ferroelectric films show in-plane chain orientation and higher domain wall density compared to hot pressed films with randomly-distributed polymer chains, which favors the polarization at low frequencies (Hz to MHz), as concluded from the higher dielectric constants and more prominent high electric field polarization switching features. However, the domain walls cannot respond at high frequencies, which leads to lower dielectric constants in the extruded films at THz frequencies.en_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.urlhttps://pubs.rsc.org/en/content/articlelanding/2020/tc/d0tc04310a#!divAbstracten_US
dc.rightsCC0 1.0 Universal*
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titleMultiscale Understanding of Electric Polarization in Poly(vinylidene fluoride)-Based Ferroelectric Polymersen_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Chester, Donghua University, Queen Mary University of London, Northwestern Polytechnical Universityen_US
dc.identifier.journalJournal of Materials Chemistry Cen_US
or.grant.openaccessYesen_US
rioxxterms.funderunfundeden_US
rioxxterms.identifier.projectunfundeden_US
rioxxterms.versionVoRen_US
rioxxterms.versionofrecord10.1039/D0TC04310Aen_US
rioxxterms.licenseref.startdate2020-10-19
rioxxterms.publicationdate2020-10-19
dc.dateAccepted2020-10-18
dc.date.deposited05-11-2020en_US
dc.indentifier.issn2050-7526en_US


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