Universal ferroelectric switching dynamics of vinylidene fluoride-trifluoroethylene copolymer films

Handle URI:
http://hdl.handle.net/10754/325429
Title:
Universal ferroelectric switching dynamics of vinylidene fluoride-trifluoroethylene copolymer films
Authors:
Hu, Weijin ( 0000-0001-5862-1481 ) ; Juo, Deng-Ming; You, Lu; Wang, Junling; Chen, Yi-Chun; Chu, Ying-Hao; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
In this work, switching dynamics of poly(vinylidene fluoride- trifluoroethylene) [P(VDF-TrFE)] copolymer films are investigated over unprecedentedly wide ranges of temperature and electric field. Remarkably, domain switching of copolymer films obeys well the classical domain nucleation and growth model although the origin of ferroelectricity in organic ferroelectric materials inherently differs from the inorganic counterparts. A lower coercivity limit of 50 ...MV/m and 180 domain wall energy of 60 ...mJ/m 2 are determined for P(VDF-TrFE) films. Furthermore, we discover in copolymer films an anomalous temperature-dependent crossover behavior between two power-law scaling regimes of frequency-dependent coercivity, which is attributed to the transition between flow and creep motions of domain walls. Our observations shed new light on the switching dynamics of semi-crystalline ferroelectric polymers, and such understandings are critical for realizing their reliable applications.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Hu WJ, Juo D-M, You L, Wang J, Chen Y-C, et al. (2014) Universal Ferroelectric Switching Dynamics of Vinylidene Fluoride-trifluoroethylene Copolymer Films. Sci Rep 4. doi:10.1038/srep04772.
Publisher:
Nature Publishing Group
Journal:
Scientific Reports
Issue Date:
24-Apr-2014
DOI:
10.1038/srep04772
PubMed ID:
24759786
PubMed Central ID:
PMC3998015
Type:
Article
ISSN:
20452322
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorHu, Weijinen
dc.contributor.authorJuo, Deng-Mingen
dc.contributor.authorYou, Luen
dc.contributor.authorWang, Junlingen
dc.contributor.authorChen, Yi-Chunen
dc.contributor.authorChu, Ying-Haoen
dc.contributor.authorWu, Taoen
dc.date.accessioned2014-08-27T09:50:59Z-
dc.date.available2014-08-27T09:50:59Z-
dc.date.issued2014-04-24en
dc.identifier.citationHu WJ, Juo D-M, You L, Wang J, Chen Y-C, et al. (2014) Universal Ferroelectric Switching Dynamics of Vinylidene Fluoride-trifluoroethylene Copolymer Films. Sci Rep 4. doi:10.1038/srep04772.en
dc.identifier.issn20452322en
dc.identifier.pmid24759786en
dc.identifier.doi10.1038/srep04772en
dc.identifier.urihttp://hdl.handle.net/10754/325429en
dc.description.abstractIn this work, switching dynamics of poly(vinylidene fluoride- trifluoroethylene) [P(VDF-TrFE)] copolymer films are investigated over unprecedentedly wide ranges of temperature and electric field. Remarkably, domain switching of copolymer films obeys well the classical domain nucleation and growth model although the origin of ferroelectricity in organic ferroelectric materials inherently differs from the inorganic counterparts. A lower coercivity limit of 50 ...MV/m and 180 domain wall energy of 60 ...mJ/m 2 are determined for P(VDF-TrFE) films. Furthermore, we discover in copolymer films an anomalous temperature-dependent crossover behavior between two power-law scaling regimes of frequency-dependent coercivity, which is attributed to the transition between flow and creep motions of domain walls. Our observations shed new light on the switching dynamics of semi-crystalline ferroelectric polymers, and such understandings are critical for realizing their reliable applications.en
dc.language.isoenen
dc.publisherNature Publishing Groupen
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. The images in this article are included in the article's Creative Commons license, unless indicated otherwise in the image credit; if the image is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the image. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/en
dc.titleUniversal ferroelectric switching dynamics of vinylidene fluoride-trifluoroethylene copolymer filmsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalScientific Reportsen
dc.identifier.pmcidPMC3998015en
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, National Cheng Kung University, Tainan 70101, Taiwanen
dc.contributor.institutionSchool of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singaporeen
dc.contributor.institutionDepartment of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwanen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorHu, Weijinen
kaust.authorWu, Taoen
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