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Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials
Since the success of monolayer graphene exfoliation, two-dimensional (2D) materials have been extensively studied due to their unique structures and unprecedented properties. Among these fascinating studies, the most predominant focus has been on their atomic structures, defects, and mechanical beha...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961825/ https://www.ncbi.nlm.nih.gov/pubmed/33802523 http://dx.doi.org/10.3390/ma14051192 |
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author | Xiong, Zixin Zhong, Lei Wang, Haotian Li, Xiaoyan |
author_facet | Xiong, Zixin Zhong, Lei Wang, Haotian Li, Xiaoyan |
author_sort | Xiong, Zixin |
collection | PubMed |
description | Since the success of monolayer graphene exfoliation, two-dimensional (2D) materials have been extensively studied due to their unique structures and unprecedented properties. Among these fascinating studies, the most predominant focus has been on their atomic structures, defects, and mechanical behaviors and properties, which serve as the basis for the practical applications of 2D materials. In this review, we first highlight the atomic structures of various 2D materials and the structural and energy features of some common defects. We then summarize the recent advances made in experimental, computational, and theoretical studies on the mechanical properties and behaviors of 2D materials. We mainly emphasized the underlying deformation and fracture mechanisms and the influences of various defects on mechanical behaviors and properties, which boost the emergence and development of topological design and defect engineering. We also further introduce the piezoelectric and flexoelectric behaviors of specific 2D materials to address the coupling between mechanical and electronic properties in 2D materials and the interactions between 2D crystals and substrates or between different 2D monolayers in heterostructures. Finally, we provide a perspective and outlook for future studies on the mechanical behaviors and properties of 2D materials. |
format | Online Article Text |
id | pubmed-7961825 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-79618252021-03-17 Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials Xiong, Zixin Zhong, Lei Wang, Haotian Li, Xiaoyan Materials (Basel) Review Since the success of monolayer graphene exfoliation, two-dimensional (2D) materials have been extensively studied due to their unique structures and unprecedented properties. Among these fascinating studies, the most predominant focus has been on their atomic structures, defects, and mechanical behaviors and properties, which serve as the basis for the practical applications of 2D materials. In this review, we first highlight the atomic structures of various 2D materials and the structural and energy features of some common defects. We then summarize the recent advances made in experimental, computational, and theoretical studies on the mechanical properties and behaviors of 2D materials. We mainly emphasized the underlying deformation and fracture mechanisms and the influences of various defects on mechanical behaviors and properties, which boost the emergence and development of topological design and defect engineering. We also further introduce the piezoelectric and flexoelectric behaviors of specific 2D materials to address the coupling between mechanical and electronic properties in 2D materials and the interactions between 2D crystals and substrates or between different 2D monolayers in heterostructures. Finally, we provide a perspective and outlook for future studies on the mechanical behaviors and properties of 2D materials. MDPI 2021-03-03 /pmc/articles/PMC7961825/ /pubmed/33802523 http://dx.doi.org/10.3390/ma14051192 Text en © 2021 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 | Review Xiong, Zixin Zhong, Lei Wang, Haotian Li, Xiaoyan Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title | Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title_full | Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title_fullStr | Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title_full_unstemmed | Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title_short | Structural Defects, Mechanical Behaviors, and Properties of Two-Dimensional Materials |
title_sort | structural defects, mechanical behaviors, and properties of two-dimensional materials |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7961825/ https://www.ncbi.nlm.nih.gov/pubmed/33802523 http://dx.doi.org/10.3390/ma14051192 |
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