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Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films

Dielectric capacitors have the highest charge/discharge speed among all electrical energy devices, but lag behind in energy density. Here we report dielectric ultracapacitors based on ferroelectric films of Ba(Zr(0.2),Ti(0.8))O(3) which display high-energy densities (up to 166 J cm(–3)) and efficien...

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Autores principales: Cheng, Hongbo, Ouyang, Jun, Zhang, Yun-Xiang, Ascienzo, David, Li, Yao, Zhao, Yu-Yao, Ren, Yuhang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722920/
https://www.ncbi.nlm.nih.gov/pubmed/29222446
http://dx.doi.org/10.1038/s41467-017-02040-y
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author Cheng, Hongbo
Ouyang, Jun
Zhang, Yun-Xiang
Ascienzo, David
Li, Yao
Zhao, Yu-Yao
Ren, Yuhang
author_facet Cheng, Hongbo
Ouyang, Jun
Zhang, Yun-Xiang
Ascienzo, David
Li, Yao
Zhao, Yu-Yao
Ren, Yuhang
author_sort Cheng, Hongbo
collection PubMed
description Dielectric capacitors have the highest charge/discharge speed among all electrical energy devices, but lag behind in energy density. Here we report dielectric ultracapacitors based on ferroelectric films of Ba(Zr(0.2),Ti(0.8))O(3) which display high-energy densities (up to 166 J cm(–3)) and efficiencies (up to 96%). Different from a typical ferroelectric whose electric polarization is easily saturated, these Ba(Zr(0.2),Ti(0.8))O(3) films display a much delayed saturation of the electric polarization, which increases continuously from nearly zero at remnant in a multipolar state, to a large value under the maximum electric field, leading to drastically improved recyclable energy densities. This is achieved by the creation of an adaptive nano-domain structure in these perovskite films via phase engineering and strain tuning. The lead-free Ba(Zr(0.2),Ti(0.8))O(3) films also show excellent dielectric and energy storage performance over a broad frequency and temperature range. These findings may enable broader applications of dielectric capacitors in energy storage, conditioning, and conversion.
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spelling pubmed-57229202017-12-11 Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films Cheng, Hongbo Ouyang, Jun Zhang, Yun-Xiang Ascienzo, David Li, Yao Zhao, Yu-Yao Ren, Yuhang Nat Commun Article Dielectric capacitors have the highest charge/discharge speed among all electrical energy devices, but lag behind in energy density. Here we report dielectric ultracapacitors based on ferroelectric films of Ba(Zr(0.2),Ti(0.8))O(3) which display high-energy densities (up to 166 J cm(–3)) and efficiencies (up to 96%). Different from a typical ferroelectric whose electric polarization is easily saturated, these Ba(Zr(0.2),Ti(0.8))O(3) films display a much delayed saturation of the electric polarization, which increases continuously from nearly zero at remnant in a multipolar state, to a large value under the maximum electric field, leading to drastically improved recyclable energy densities. This is achieved by the creation of an adaptive nano-domain structure in these perovskite films via phase engineering and strain tuning. The lead-free Ba(Zr(0.2),Ti(0.8))O(3) films also show excellent dielectric and energy storage performance over a broad frequency and temperature range. These findings may enable broader applications of dielectric capacitors in energy storage, conditioning, and conversion. Nature Publishing Group UK 2017-12-08 /pmc/articles/PMC5722920/ /pubmed/29222446 http://dx.doi.org/10.1038/s41467-017-02040-y Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Cheng, Hongbo
Ouyang, Jun
Zhang, Yun-Xiang
Ascienzo, David
Li, Yao
Zhao, Yu-Yao
Ren, Yuhang
Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title_full Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title_fullStr Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title_full_unstemmed Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title_short Demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
title_sort demonstration of ultra-high recyclable energy densities in domain-engineered ferroelectric films
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722920/
https://www.ncbi.nlm.nih.gov/pubmed/29222446
http://dx.doi.org/10.1038/s41467-017-02040-y
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