Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104112
Title: Universal ferroelectric switching dynamics of vinylidene fluoride-trifluoroethylene copolymer films
Authors: Hu, Wei Jin
Juo, Deng-Ming
You, Lu
Wang, Junling
Chen, Yi-Chun
Chu, Ying-Hao
Wu, Tom
Keywords: DRNTU::Engineering::Materials::Organic/Polymer electronics
Issue Date: 2014
Source: Hu, W. J., Juo, D.-M., You, L., Wang, J., Chen, Y.-C., Chu, Y.-H., et al. (2014). Universal Ferroelectric Switching Dynamics of Vinylidene Fluoride-trifluoroethylene Copolymer Films. Scientific Reports, 4, 4772-.
Series/Report no.: Scientific reports
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/m2 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.
URI: https://hdl.handle.net/10356/104112
http://hdl.handle.net/10220/19527
ISSN: 2045-2322
DOI: 10.1038/srep04772
Rights: This 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 theCreative Commons license, userswill need to obtain permission fromthe 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/
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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