Tearing graphene sheets from adhesive substrates produces tapered nanoribbons
Graphene is a truly two-dimensional atomic crystal with exceptional electronic and mechanical properties. Whereas conventional bulk and thin-film materials have been studied extensively, the key mechanical properties of graphene, such as tearing and cracking, remain unknown, partly due to its two-di...
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| Format: | Article |
| Language: | en_US |
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Wiley Blackwell
2013
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| Online Access: | http://hdl.handle.net/1721.1/77221 https://orcid.org/0000-0003-3984-828X https://orcid.org/0000-0002-4173-9659 |
| _version_ | 1811096227378364416 |
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| author | Sen, Dipanjan Novoselov, Kostya S. Reis, Pedro Miguel Buehler, Markus J. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Sen, Dipanjan Novoselov, Kostya S. Reis, Pedro Miguel Buehler, Markus J. |
| author_sort | Sen, Dipanjan |
| collection | MIT |
| description | Graphene is a truly two-dimensional atomic crystal with exceptional electronic and mechanical properties. Whereas conventional bulk and thin-film materials have been studied extensively, the key mechanical properties of graphene, such as tearing and cracking, remain unknown, partly due to its two-dimensional nature and ultimate single-atom-layer thickness, which result in the breakdown of conventional material models. By combining first-principles ReaxFF molecular dynamics and experimental studies, a bottom-up investigation of the tearing of graphene sheets from adhesive substrates is reported, including the discovery of the formation of tapered graphene nanoribbons. Through a careful analysis of the underlying molecular rupture mechanisms, it is shown that the resulting nanoribbon geometry is controlled by both the graphene–substrate adhesion energy and by the number of torn graphene layers. By considering graphene as a model material for a broader class of two-dimensional atomic crystals, these results provide fundamental insights into the tearing and cracking mechanisms of highly confined nanomaterials. |
| first_indexed | 2024-09-23T16:40:36Z |
| format | Article |
| id | mit-1721.1/77221 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:40:36Z |
| publishDate | 2013 |
| publisher | Wiley Blackwell |
| record_format | dspace |
| spelling | mit-1721.1/772212022-10-03T07:31:15Z Tearing graphene sheets from adhesive substrates produces tapered nanoribbons Sen, Dipanjan Novoselov, Kostya S. Reis, Pedro Miguel Buehler, Markus J. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Massachusetts Institute of Technology. Department of Mathematics Sen, Dipanjan Reis, Pedro Miguel Buehler, Markus J. Graphene is a truly two-dimensional atomic crystal with exceptional electronic and mechanical properties. Whereas conventional bulk and thin-film materials have been studied extensively, the key mechanical properties of graphene, such as tearing and cracking, remain unknown, partly due to its two-dimensional nature and ultimate single-atom-layer thickness, which result in the breakdown of conventional material models. By combining first-principles ReaxFF molecular dynamics and experimental studies, a bottom-up investigation of the tearing of graphene sheets from adhesive substrates is reported, including the discovery of the formation of tapered graphene nanoribbons. Through a careful analysis of the underlying molecular rupture mechanisms, it is shown that the resulting nanoribbon geometry is controlled by both the graphene–substrate adhesion energy and by the number of torn graphene layers. By considering graphene as a model material for a broader class of two-dimensional atomic crystals, these results provide fundamental insights into the tearing and cracking mechanisms of highly confined nanomaterials. United States. Defense Advanced Research Projects Agency (Grant HR0011-08-1-0067) United States. Army Research Office. (Grant W911NF-06-1-0291) 2013-02-27T19:45:38Z 2013-02-27T19:45:38Z 2010-05 Article http://purl.org/eprint/type/JournalArticle 1613-6810 1613-6829 http://hdl.handle.net/1721.1/77221 Sen, Dipanjan et al. “Tearing Graphene Sheets From Adhesive Substrates Produces Tapered Nanoribbons.” Small 6.10 (2010): 1108–1116. https://orcid.org/0000-0003-3984-828X https://orcid.org/0000-0002-4173-9659 en_US http://dx.doi.org/10.1002/smll.201000097 Small Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley Blackwell arXiv |
| spellingShingle | Sen, Dipanjan Novoselov, Kostya S. Reis, Pedro Miguel Buehler, Markus J. Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title | Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title_full | Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title_fullStr | Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title_full_unstemmed | Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title_short | Tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| title_sort | tearing graphene sheets from adhesive substrates produces tapered nanoribbons |
| url | http://hdl.handle.net/1721.1/77221 https://orcid.org/0000-0003-3984-828X https://orcid.org/0000-0002-4173-9659 |
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