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Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation

Boosting dielectric permittivity representing electrical polarizability of dielectric materials has been considered a keystone for achieving scientific breakthroughs as well as technological advances in various multifunctional devices. Here, we demonstrate sizable enhancements of low-frequency diele...

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Autores principales: Duong, Nguyen Xuan, Jang, Ji-Soo, Jung, Min-Hyoung, Bae, Jong-Seong, Ahn, Chang Won, Jin, Jong Sung, Ihm, Kyuwook, Kim, Gyehyeon, Lim, So Yeon, Lee, Jongmin, Dung, Dang Duc, Lee, Soonil, Kim, Young-Min, Lee, Sanghan, Yang, Sang Mo, Sohn, Changhee, Kim, Ill Won, Jeong, Hu Young, Baek, Seung-Hyub, Kim, Tae Heon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9956132/
https://www.ncbi.nlm.nih.gov/pubmed/36827373
http://dx.doi.org/10.1126/sciadv.add8328
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author Duong, Nguyen Xuan
Jang, Ji-Soo
Jung, Min-Hyoung
Bae, Jong-Seong
Ahn, Chang Won
Jin, Jong Sung
Ihm, Kyuwook
Kim, Gyehyeon
Lim, So Yeon
Lee, Jongmin
Dung, Dang Duc
Lee, Soonil
Kim, Young-Min
Lee, Sanghan
Yang, Sang Mo
Sohn, Changhee
Kim, Ill Won
Jeong, Hu Young
Baek, Seung-Hyub
Kim, Tae Heon
author_facet Duong, Nguyen Xuan
Jang, Ji-Soo
Jung, Min-Hyoung
Bae, Jong-Seong
Ahn, Chang Won
Jin, Jong Sung
Ihm, Kyuwook
Kim, Gyehyeon
Lim, So Yeon
Lee, Jongmin
Dung, Dang Duc
Lee, Soonil
Kim, Young-Min
Lee, Sanghan
Yang, Sang Mo
Sohn, Changhee
Kim, Ill Won
Jeong, Hu Young
Baek, Seung-Hyub
Kim, Tae Heon
author_sort Duong, Nguyen Xuan
collection PubMed
description Boosting dielectric permittivity representing electrical polarizability of dielectric materials has been considered a keystone for achieving scientific breakthroughs as well as technological advances in various multifunctional devices. Here, we demonstrate sizable enhancements of low-frequency dielectric responses in oxygen-deficient oxide ceramics through specific treatments under humid environments. Ultrahigh dielectric permittivity (~5.2 × 10(6) at 1 Hz) is achieved by hydrogenation, when Ni-substituted BaTiO(3) ceramics are exposed to high humidity. Intriguingly, thermal annealing can restore the dielectric on-state (exhibiting huge polarizability in the treated ceramics) to the initial dielectric off-state (displaying low polarizability of ~10(3) in the pristine ceramics after sintering). The conversion between these two dielectric states via the ambient environment–mediated treatments and the successive application of external stimuli allows us to realize reversible control of dielectric relaxation characteristics in oxide ceramics. Conceptually, our findings are of practical interest for applications to highly efficient dielectric-based humidity sensors.
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spelling pubmed-99561322023-02-25 Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation Duong, Nguyen Xuan Jang, Ji-Soo Jung, Min-Hyoung Bae, Jong-Seong Ahn, Chang Won Jin, Jong Sung Ihm, Kyuwook Kim, Gyehyeon Lim, So Yeon Lee, Jongmin Dung, Dang Duc Lee, Soonil Kim, Young-Min Lee, Sanghan Yang, Sang Mo Sohn, Changhee Kim, Ill Won Jeong, Hu Young Baek, Seung-Hyub Kim, Tae Heon Sci Adv Physical and Materials Sciences Boosting dielectric permittivity representing electrical polarizability of dielectric materials has been considered a keystone for achieving scientific breakthroughs as well as technological advances in various multifunctional devices. Here, we demonstrate sizable enhancements of low-frequency dielectric responses in oxygen-deficient oxide ceramics through specific treatments under humid environments. Ultrahigh dielectric permittivity (~5.2 × 10(6) at 1 Hz) is achieved by hydrogenation, when Ni-substituted BaTiO(3) ceramics are exposed to high humidity. Intriguingly, thermal annealing can restore the dielectric on-state (exhibiting huge polarizability in the treated ceramics) to the initial dielectric off-state (displaying low polarizability of ~10(3) in the pristine ceramics after sintering). The conversion between these two dielectric states via the ambient environment–mediated treatments and the successive application of external stimuli allows us to realize reversible control of dielectric relaxation characteristics in oxide ceramics. Conceptually, our findings are of practical interest for applications to highly efficient dielectric-based humidity sensors. American Association for the Advancement of Science 2023-02-24 /pmc/articles/PMC9956132/ /pubmed/36827373 http://dx.doi.org/10.1126/sciadv.add8328 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Duong, Nguyen Xuan
Jang, Ji-Soo
Jung, Min-Hyoung
Bae, Jong-Seong
Ahn, Chang Won
Jin, Jong Sung
Ihm, Kyuwook
Kim, Gyehyeon
Lim, So Yeon
Lee, Jongmin
Dung, Dang Duc
Lee, Soonil
Kim, Young-Min
Lee, Sanghan
Yang, Sang Mo
Sohn, Changhee
Kim, Ill Won
Jeong, Hu Young
Baek, Seung-Hyub
Kim, Tae Heon
Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title_full Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title_fullStr Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title_full_unstemmed Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title_short Ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
title_sort ultrahigh dielectric permittivity in oxide ceramics by hydrogenation
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9956132/
https://www.ncbi.nlm.nih.gov/pubmed/36827373
http://dx.doi.org/10.1126/sciadv.add8328
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