Superstructural defects and superlattice domains in stacked graphene

Jong Min Yuk; Hu Young Jeong; Na Yeon Kim; Hyo Ju Park; Gwangwoo Kim; Hyeon Suk Shin; Rodney S. Ruoff; Jeong Yong Lee; Zonghoon Lee

doi:10.1016/j.carbon.2014.09.026

Superstructural defects and superlattice domains in stacked graphene

Jong Min Yuk, Hu Young Jeong, Na Yeon Kim, Hyo Ju Park, Gwangwoo Kim, Hyeon Suk Shin, Rodney S. Ruoff, Jeong Yong Lee, Zonghoon Lee

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

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.

Original language	English
Pages (from-to)	755-761
Number of pages	7
Journal	Carbon
Volume	80
Issue number	1
DOIs	https://doi.org/10.1016/j.carbon.2014.09.026
State	Published - 2014
Externally published	Yes

Funding

This work was supported by Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning ( 2012M3A7B4049807 ). This work was supported by IBS-R019-D1 and IBS-R004-G3 and Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0029714).

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10.1016/j.carbon.2014.09.026

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title = "Superstructural defects and superlattice domains in stacked graphene",

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.",

author = "Yuk, {Jong Min} and Jeong, {Hu Young} and Kim, {Na Yeon} and Park, {Hyo Ju} and Gwangwoo Kim and Shin, {Hyeon Suk} and Ruoff, {Rodney S.} and Lee, {Jeong Yong} and Zonghoon Lee",

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AU - Yuk, Jong Min

AU - Jeong, Hu Young

AU - Kim, Na Yeon

AU - Park, Hyo Ju

AU - Kim, Gwangwoo

AU - Shin, Hyeon Suk

AU - Ruoff, Rodney S.

AU - Lee, Jeong Yong

AU - Lee, Zonghoon

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

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Superstructural defects and superlattice domains in stacked graphene

Abstract

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