Orientation-dependent mechanical response of graphene/BN hybrid nanostructures.
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| Title: | Orientation-dependent mechanical response of graphene/BN hybrid nanostructures. |
|---|---|
| Authors: | Patra, Lokanath (AUTHOR), Mallick, Govind (AUTHOR) govinda.mallick.civ@mail.mil, Sachdeva, Geeta (AUTHOR), Shock, Cameron (AUTHOR), Pandey, Ravindra (AUTHOR) pandey@mtu.edu |
| Source: | Nanotechnology. 6/4/2021, Vol. 32 Issue 23, p1-8. 8p. |
| Subjects: | Graphene, Nanoindentation, Graphene synthesis, Molecular dynamics, Nanostructures |
| Abstract: | Graphene-based hybrid van der Waals structures have emerged as a new class of materials for novel multifunctional applications. In such a vertically-stacked heterostructure, it is expected that its mechanical strength can be tailored by the orientation of the constituent monolayers relative to each other. In this paper, we explore this hypothesis by investigating the orientation dependence of the mechanical properties of graphene/h-BN heterostructures together with that of graphene and h-BN bilayers. The calculated results simulating the pull-out experiment show a noticeable dependence of the (out-of-plane) transverse mechanical response, which is primarily governed by the interlayer strength, on the stacking configurations. The degree of the dependence is directly related to the nature of the interlayer interactions, which change from covalent to covalent polar in going from graphene bilayer to graphene/BN to BN bilayer. In contrast, molecular dynamics simulations mimicking nanoindentation experiments predict that the in-plane mechanical response, which mainly depends on the intra-layer interactions, shows little or no dependence on the stacking-order. The BN monolayer is predicted to fracture before graphene regardless of the stacking pattern or configuration in the graphene/BN heterostructure, affirming the mechanical robustness of graphene. Thus, the graphene-based hybrid structures retain both stiffness and toughness required for a wide range of optoelectromechanical applications. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 149987972 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Orientation-dependent mechanical response of graphene/BN hybrid nanostructures. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Patra%2C+Lokanath%22">Patra, Lokanath</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mallick%2C+Govind%22">Mallick, Govind</searchLink> (AUTHOR)<i> govinda.mallick.civ@mail.mil</i><br /><searchLink fieldCode="AR" term="%22Sachdeva%2C+Geeta%22">Sachdeva, Geeta</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shock%2C+Cameron%22">Shock, Cameron</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pandey%2C+Ravindra%22">Pandey, Ravindra</searchLink> (AUTHOR)<i> pandey@mtu.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanotechnology%22">Nanotechnology</searchLink>. 6/4/2021, Vol. 32 Issue 23, p1-8. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Graphene%22">Graphene</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoindentation%22">Nanoindentation</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene+synthesis%22">Graphene synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22Molecular+dynamics%22">Molecular dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructures%22">Nanostructures</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Graphene-based hybrid van der Waals structures have emerged as a new class of materials for novel multifunctional applications. In such a vertically-stacked heterostructure, it is expected that its mechanical strength can be tailored by the orientation of the constituent monolayers relative to each other. In this paper, we explore this hypothesis by investigating the orientation dependence of the mechanical properties of graphene/h-BN heterostructures together with that of graphene and h-BN bilayers. The calculated results simulating the pull-out experiment show a noticeable dependence of the (out-of-plane) transverse mechanical response, which is primarily governed by the interlayer strength, on the stacking configurations. The degree of the dependence is directly related to the nature of the interlayer interactions, which change from covalent to covalent polar in going from graphene bilayer to graphene/BN to BN bilayer. In contrast, molecular dynamics simulations mimicking nanoindentation experiments predict that the in-plane mechanical response, which mainly depends on the intra-layer interactions, shows little or no dependence on the stacking-order. The BN monolayer is predicted to fracture before graphene regardless of the stacking pattern or configuration in the graphene/BN heterostructure, affirming the mechanical robustness of graphene. Thus, the graphene-based hybrid structures retain both stiffness and toughness required for a wide range of optoelectromechanical applications. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanotechnology is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1088/1361-6528/abe671 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 1 Subjects: – SubjectFull: Graphene Type: general – SubjectFull: Nanoindentation Type: general – SubjectFull: Graphene synthesis Type: general – SubjectFull: Molecular dynamics Type: general – SubjectFull: Nanostructures Type: general Titles: – TitleFull: Orientation-dependent mechanical response of graphene/BN hybrid nanostructures. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Patra, Lokanath – PersonEntity: Name: NameFull: Mallick, Govind – PersonEntity: Name: NameFull: Sachdeva, Geeta – PersonEntity: Name: NameFull: Shock, Cameron – PersonEntity: Name: NameFull: Pandey, Ravindra IsPartOfRelationships: – BibEntity: Dates: – D: 04 M: 06 Text: 6/4/2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 09574484 Numbering: – Type: volume Value: 32 – Type: issue Value: 23 Titles: – TitleFull: Nanotechnology Type: main |
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