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Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy

Eliminating topological defects to achieve monodomain liquid crystals is highly significant for the fundamental studies of soft matter and building long-range ordered materials. However, liquid crystals are metastable and sensitive to external stimuli, such as flow, confinement, and electromagnetic...

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Autores principales: Cao, Min, Liu, Senping, Zhu, Qingli, Wang, Ya, Ma, Jingyu, Li, Zeshen, Chang, Dan, Zhu, Enhui, Ming, Xin, Puchtler, Florian, Breu, Josef, Wu, Ziliang, Liu, Yingjun, Jiang, Yanqiu, Xu, Zhen, Gao, Chao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Nature Singapore 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9485412/
https://www.ncbi.nlm.nih.gov/pubmed/36121520
http://dx.doi.org/10.1007/s40820-022-00925-2
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author Cao, Min
Liu, Senping
Zhu, Qingli
Wang, Ya
Ma, Jingyu
Li, Zeshen
Chang, Dan
Zhu, Enhui
Ming, Xin
Puchtler, Florian
Breu, Josef
Wu, Ziliang
Liu, Yingjun
Jiang, Yanqiu
Xu, Zhen
Gao, Chao
author_facet Cao, Min
Liu, Senping
Zhu, Qingli
Wang, Ya
Ma, Jingyu
Li, Zeshen
Chang, Dan
Zhu, Enhui
Ming, Xin
Puchtler, Florian
Breu, Josef
Wu, Ziliang
Liu, Yingjun
Jiang, Yanqiu
Xu, Zhen
Gao, Chao
author_sort Cao, Min
collection PubMed
description Eliminating topological defects to achieve monodomain liquid crystals is highly significant for the fundamental studies of soft matter and building long-range ordered materials. However, liquid crystals are metastable and sensitive to external stimuli, such as flow, confinement, and electromagnetic fields, which cause their intrinsic polycrystallinity and topological defects. Here, we achieve the monodomain liquid crystals of graphene oxide over 30 cm through boundary-free sheargraphy. The obtained monodomain liquid crystals exhibit large-area uniform alignment of sheets, which has the same optical polarized angle and intensity. The monodomain liquid crystals provide bidirectionally ordered skeletons, which can be applied as lightweight thermal management materials with bidirectionally high thermal and electrical conductivity. Furthermore, we extend the controllable topology of two-dimensional colloids by introducing singularities and disclinations in monodomain liquid crystals. Topological structures with defect strength from − 2 to + 2 were realized. This work provides a facile methodology to study the structural order of soft matter at a macroscopic level, facilitating the fabrication of metamaterials with tunable and highly anisotropic architectures. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00925-2.
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spelling pubmed-94854122022-09-21 Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy Cao, Min Liu, Senping Zhu, Qingli Wang, Ya Ma, Jingyu Li, Zeshen Chang, Dan Zhu, Enhui Ming, Xin Puchtler, Florian Breu, Josef Wu, Ziliang Liu, Yingjun Jiang, Yanqiu Xu, Zhen Gao, Chao Nanomicro Lett Article Eliminating topological defects to achieve monodomain liquid crystals is highly significant for the fundamental studies of soft matter and building long-range ordered materials. However, liquid crystals are metastable and sensitive to external stimuli, such as flow, confinement, and electromagnetic fields, which cause their intrinsic polycrystallinity and topological defects. Here, we achieve the monodomain liquid crystals of graphene oxide over 30 cm through boundary-free sheargraphy. The obtained monodomain liquid crystals exhibit large-area uniform alignment of sheets, which has the same optical polarized angle and intensity. The monodomain liquid crystals provide bidirectionally ordered skeletons, which can be applied as lightweight thermal management materials with bidirectionally high thermal and electrical conductivity. Furthermore, we extend the controllable topology of two-dimensional colloids by introducing singularities and disclinations in monodomain liquid crystals. Topological structures with defect strength from − 2 to + 2 were realized. This work provides a facile methodology to study the structural order of soft matter at a macroscopic level, facilitating the fabrication of metamaterials with tunable and highly anisotropic architectures. [Image: see text] SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s40820-022-00925-2. Springer Nature Singapore 2022-09-19 /pmc/articles/PMC9485412/ /pubmed/36121520 http://dx.doi.org/10.1007/s40820-022-00925-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis 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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Cao, Min
Liu, Senping
Zhu, Qingli
Wang, Ya
Ma, Jingyu
Li, Zeshen
Chang, Dan
Zhu, Enhui
Ming, Xin
Puchtler, Florian
Breu, Josef
Wu, Ziliang
Liu, Yingjun
Jiang, Yanqiu
Xu, Zhen
Gao, Chao
Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title_full Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title_fullStr Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title_full_unstemmed Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title_short Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy
title_sort monodomain liquid crystals of two-dimensional sheets by boundary-free sheargraphy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9485412/
https://www.ncbi.nlm.nih.gov/pubmed/36121520
http://dx.doi.org/10.1007/s40820-022-00925-2
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