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Superstructural defects and superlattice domains in stacked graphene

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Title
Superstructural defects and superlattice domains in stacked graphene
Author(s)
Jong Min Yuk; Jeong, HY; Kim, NY; Park, HJ; Kim, G; Hyeon Suk Shin; Rodney S Ruoff; Jeong Yong Lee; Zonghoon Lee
Publication Date
2014-12
Journal
CARBON, v.80, no.1, pp.755 - 761
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Recently there has been interest in two-dimensional graphene-based superstructures, such as twisted bilayer or trilayer graphene or graphene on hexagonal boron nitride, stacked one on top of the other. These superstructures are expected to have electronic and optical properties that depend on even small changes in the twist angles. By structural mapping in the micrometer scale, we demonstrate that superstructures consist of stacking-induced ‘superlattice domains’. The rotational disorder between domains created by the superstructural defects, such as wrinkles, folds and grain boundaries, and guest species intercalated between stacked layers, was analyzed at a resolution of sub-one degree. This comprehensive approach provides crucial structural information on graphene-based superstructures.
URI
https://pr.ibs.re.kr/handle/8788114/1438
ISSN
0008-6223
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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