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나노 구조 물리 연구단
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Two-dimensional membrane as elastic shell with proof on the folds revealed by three-dimensional atomic mapping

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Title
Two-dimensional membrane as elastic shell with proof on the folds revealed by three-dimensional atomic mapping
Author(s)
Jiong Zhao; Deng, Q.; Thuc Hue Ly; Gang Hee Han; Sandeep, G.; Mark H. Rümmeli
Publication Date
2015-11
Journal
NATURE COMMUNICATIONS, v.6, no., pp.8935 -
Publisher
NATURE PUBLISHING GROUP
Abstract
The great application potential for two-dimensional (2D) membranes (MoS 2, WSe 2, graphene and so on) aroused much effort to understand their fundamental mechanical properties. The out-of-plane bending rigidity is the key factor that controls the membrane morphology under external fields. Herein we provide an easy method to reconstruct the 3D structures of the folded edges of these 2D membranes on the atomic scale, using high-resolution (S)TEM images. After quantitative comparison with continuum mechanics shell model, it is verified that the bending behaviour of the studied 2D materials can be well explained by the linear elastic shell model. And the bending rigidities can thus be derived by fitting with our experimental results. Recall almost only theoretical approaches can access the bending properties of these 2D membranes before, now a new experimental method to measure the bending rigidity of such flexible and atomic thick 2D membranes is proposed. © 2015 Macmillan Publishers Limited. All rights reserved
URI
http://pr.ibs.re.kr/handle/8788114/2245
DOI
10.1038/ncomms9935
ISSN
2041-1723
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
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