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Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films

The characteristics of ferroelectric capacitors with poly(vinylidene fluoride-trifluoroethlene) (P(VDF-TrFE)) films have been studied at different structures of cell electrodes. It is suggested that the effect of electrode structures could induce changes of performance. Remarkably, cells with line e...

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Autores principales: Li, Long, Zhang, Xiuli, Chen, Hongzhen, Sun, Xiaohui, Yuan, Haidong, Xu, Haisheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415043/
https://www.ncbi.nlm.nih.gov/pubmed/30966041
http://dx.doi.org/10.3390/polym10010006
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author Li, Long
Zhang, Xiuli
Chen, Hongzhen
Sun, Xiaohui
Yuan, Haidong
Xu, Haisheng
author_facet Li, Long
Zhang, Xiuli
Chen, Hongzhen
Sun, Xiaohui
Yuan, Haidong
Xu, Haisheng
author_sort Li, Long
collection PubMed
description The characteristics of ferroelectric capacitors with poly(vinylidene fluoride-trifluoroethlene) (P(VDF-TrFE)) films have been studied at different structures of cell electrodes. It is suggested that the effect of electrode structures could induce changes of performance. Remarkably, cells with line electrodes display a better polarization and fatigue resistance than those with flat electrodes. For P(VDF-TrFE) ultrathin films with different electrode structures, the models of charge compensation mechanism for depolarization field and domain fatigue decomposition are used to explain the effect of electrode structure. Furthermore, the driving voltage based on normal speed-functionality is designed, and the testing results show that the line electrode structure could induce a robust switching, which is determined by the free charges concentration in active layer. These findings provide an effective route to design the optimum structure for a ferroelectric capacitor based on P(VDF-TrFE) copolymer ultrathin film.
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spelling pubmed-64150432019-04-02 Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films Li, Long Zhang, Xiuli Chen, Hongzhen Sun, Xiaohui Yuan, Haidong Xu, Haisheng Polymers (Basel) Article The characteristics of ferroelectric capacitors with poly(vinylidene fluoride-trifluoroethlene) (P(VDF-TrFE)) films have been studied at different structures of cell electrodes. It is suggested that the effect of electrode structures could induce changes of performance. Remarkably, cells with line electrodes display a better polarization and fatigue resistance than those with flat electrodes. For P(VDF-TrFE) ultrathin films with different electrode structures, the models of charge compensation mechanism for depolarization field and domain fatigue decomposition are used to explain the effect of electrode structure. Furthermore, the driving voltage based on normal speed-functionality is designed, and the testing results show that the line electrode structure could induce a robust switching, which is determined by the free charges concentration in active layer. These findings provide an effective route to design the optimum structure for a ferroelectric capacitor based on P(VDF-TrFE) copolymer ultrathin film. MDPI 2017-12-22 /pmc/articles/PMC6415043/ /pubmed/30966041 http://dx.doi.org/10.3390/polym10010006 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Long
Zhang, Xiuli
Chen, Hongzhen
Sun, Xiaohui
Yuan, Haidong
Xu, Haisheng
Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title_full Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title_fullStr Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title_full_unstemmed Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title_short Modeling of Structure Effect for Ferroelectric Capacitor Based on Poly(vinylidene fluoride-trifluoroethylene) Ultrathin Films
title_sort modeling of structure effect for ferroelectric capacitor based on poly(vinylidene fluoride-trifluoroethylene) ultrathin films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415043/
https://www.ncbi.nlm.nih.gov/pubmed/30966041
http://dx.doi.org/10.3390/polym10010006
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