Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate
Abstract Flexoelectricity in multilayer graphene (MLG) buckling can stimulate kink-shaped crinkle formation. In the process, the bifurcation becomes subcritical and the suspended-MLG’s crinkle curvature is localized to a narrow band of...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer International Publishing
2022
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| Online Access: | https://hdl.handle.net/1721.1/146001 |
| _version_ | 1811083560838234112 |
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| author | Kothari, Mrityunjay Kim, Kyung-Suk |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Kothari, Mrityunjay Kim, Kyung-Suk |
| author_sort | Kothari, Mrityunjay |
| collection | MIT |
| description | Abstract
Flexoelectricity in multilayer graphene (MLG) buckling can stimulate kink-shaped crinkle formation. In the process, the bifurcation becomes subcritical and the suspended-MLG’s crinkle curvature is localized to a narrow band of
$$\sim 2nm$$
∼
2
n
m
width. We extend the study to flexoelectric layers bonded to a soft elastic substrate. Elastic substrates can guide the morphology of MLG and produce periodic patterns. We show that MLG’s flexoelectricity together with substrate elasticity can produce periodic crinkles, which qualitatively explains the grade-dependent mosaic spreading in highly oriented pyrolytic graphite (HOPG). Experimental measurements of HOPG’s surface-slope variations indeed confirm curvature localization at the crinkle valleys and ridges.
Graphical abstract |
| first_indexed | 2024-09-23T12:35:01Z |
| format | Article |
| id | mit-1721.1/146001 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:35:01Z |
| publishDate | 2022 |
| publisher | Springer International Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1460012023-01-27T18:46:02Z Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate Kothari, Mrityunjay Kim, Kyung-Suk Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Abstract Flexoelectricity in multilayer graphene (MLG) buckling can stimulate kink-shaped crinkle formation. In the process, the bifurcation becomes subcritical and the suspended-MLG’s crinkle curvature is localized to a narrow band of $$\sim 2nm$$ ∼ 2 n m width. We extend the study to flexoelectric layers bonded to a soft elastic substrate. Elastic substrates can guide the morphology of MLG and produce periodic patterns. We show that MLG’s flexoelectricity together with substrate elasticity can produce periodic crinkles, which qualitatively explains the grade-dependent mosaic spreading in highly oriented pyrolytic graphite (HOPG). Experimental measurements of HOPG’s surface-slope variations indeed confirm curvature localization at the crinkle valleys and ridges. Graphical abstract 2022-10-26T18:02:20Z 2022-10-26T18:02:20Z 2022-09-07 2022-10-26T03:32:47Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146001 Kothari, Mrityunjay and Kim, Kyung-Suk. 2022. "Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate." en https://doi.org/10.1557/s43579-022-00239-9 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The Author(s), under exclusive licence to The Materials Research Society application/pdf Springer International Publishing Springer International Publishing |
| spellingShingle | Kothari, Mrityunjay Kim, Kyung-Suk Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title | Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title_full | Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title_fullStr | Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title_full_unstemmed | Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title_short | Flexoelectricity-driven periodic buckling in multilayer graphene bonded to compliant substrate |
| title_sort | flexoelectricity driven periodic buckling in multilayer graphene bonded to compliant substrate |
| url | https://hdl.handle.net/1721.1/146001 |
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