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Rodney S. Ruoff
다차원 탄소재료 연구단
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Revealing the planar chemistry of two-dimensional heterostructures at the atomic level

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Title
Revealing the planar chemistry of two-dimensional heterostructures at the atomic level
Author(s)
Harry Chou; Ariel Ismach; Rudresh Ghosh; Rodney S. Ruoff; Andrei Dolocan
Publication Date
2015-08
Journal
NATURE COMMUNICATIONS, v.6, no., pp.7482 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Two-dimensional (2D) atomic crystals and their heterostructures are an intense area of study owing to their unique properties that result from structural planar confinement. Intrinsically, the performance of a planar vertical device is linked to the quality of its 2D components and their interfaces, therefore requiring characterization tools that can reveal both its planar chemistry and morphology. Here, we propose a characterization methodology combining (micro-) Raman spectroscopy, atomic force microscopy and time-of-flight secondary ion mass spectrometry to provide structural information, morphology and planar chemical composition at virtually the atomic level, aimed specifically at studying 2D vertical heterostructures. As an example system, a graphene-on-h-BN heterostructure is analysed to reveal, with an unprecedented level of detail, the subtle chemistry and interactions within its layer structure that can be assigned to specific fabrication steps. Such detailed chemical information is of crucial importance for the complete integration of 2D heterostructures into functional devices. © 2015 Macmillan Publishers Limited
URI
http://pr.ibs.re.kr/handle/8788114/1936
DOI
10.1038/ncomms8482
ISSN
2041-1723
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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