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Ruoff, Rodney S.
Center for Multidimensional Carbon Materials (CMCM)
Research Interests
  • Next generation carbons, ultrathin sp3-bonded carbon sheets, negative curvature (‘Schwartzites’) carbons, sp3/sp2 hybrid carbon materials, model compounds for novel carbon materials, reaction mechanisms

Folding and Fracture of Single-Crystal Graphene Grown on a Cu(111) Foil

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dc.contributor.author Luo, Da ko
dc.contributor.author Choe, Myeonggi ko
dc.contributor.author Bizao, Rafael A. ko
dc.contributor.author Wang, Meihui ko
dc.contributor.author Su, Haisheng ko
dc.contributor.author Huang, Ming ko
dc.contributor.author Jin, Sunghwan ko
dc.contributor.author Li, Yunqing ko
dc.contributor.author Kim, Minhyeok ko
dc.contributor.author Pugno, Nicola M. ko
dc.contributor.author Ren, Bin ko
dc.contributor.author Lee, Zonghoon ko
dc.contributor.author Ruoff, Rodney S. ko
dc.date.available 2022-03-31T23:46:50Z -
dc.date.created 2022-03-18 ko
dc.date.issued 2022-04 ko
dc.identifier.citation ADVANCED MATERIALS, v.34, no.15, pp.2110509 ko
dc.identifier.issn 0935-9648 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/57677 -
dc.description.abstract A single-crystal graphene film grown on a Cu(111) foil by chemical vapor deposition (CVD) has ribbon-like fold structures. These graphene folds are highly oriented and essentially parallel to each other. Cu surface steps underneath the graphene are along the and directions, leading to the formation of the arrays of folds. The folds in the single-layer graphene (SLG) are not continuous but break up into alternating patterns. A "joint" (an AB-stacked bilayer graphene) region connects two neighboring alternating regions, and the breaks are always along zigzag or armchair directions. Folds formed in bilayer or few-layer graphene are continuous with no breaks. Molecular dynamics simulations show that SLG suffers a significantly higher compressive stress compared to bilayer graphene when both are under the same compression, thus leading to the rupture of SLG in these fold regions. The fracture strength of a CVD-grown single-crystal SLG film is simulated to be about 70 GPa. This study greatly deepens the understanding of the mechanics of CVD-grown single-crystal graphene and such folds, and sheds light on the fabrication of various graphene origami/kirigami structures by substrate engineering. Such oriented folds can be used in a variety of further studies. ko
dc.language 영어 ko
dc.publisher WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim ko
dc.title Folding and Fracture of Single-Crystal Graphene Grown on a Cu(111) Foil ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85125406005 ko
dc.identifier.wosid 000762236100001 ko
dc.type.rims ART ko
dc.identifier.doi 10.1002/adma.202110509 ko
dc.identifier.url https://onlinelibrary.wiley.com/doi/10.1002/adma.202110509 ko
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