Nanomechanical Unfolding of Self-Folded Graphene on Flat Substrate

We report the nanomechanical unfolding of individual self-folded graphene flakes on a flat substrate by using atomic force microscopy techniques. The nanomechanical measurements and molecular dynamics simulations reveal the detailed unfolding process that turns a z-shaped self-folded graphene segmen...

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Bibliographic Details
Published in:Experimental mechanics 2019-03, Vol.59 (3), p.381-386
Main Authors: Yi, C.L., Zhang, L.Y., Chen, X.M., Wang, X.Q., Ke, C.H.
Format: Article
Language:English
Subjects:
Atomic force microscopy
Biomedical Engineering and Bioengineering
Characterization and Evaluation of Materials
Control
Dynamical Systems
Engineering
Graphene
Lasers
Molecular dynamics
Morphing
Optical Devices
Optics
Photonics
Solid Mechanics
Substrates
Vibration
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Summary:We report the nanomechanical unfolding of individual self-folded graphene flakes on a flat substrate by using atomic force microscopy techniques. The nanomechanical measurements and molecular dynamics simulations reveal the detailed unfolding process that turns a z-shaped self-folded graphene segment into a flat membrane. A reversible sliding phenomenon in the adhered graphene region during the unfolding process is observed. The findings are useful to better understand the reversible folding properties of graphene and in pursuit of reversible and morphing graphene origami.
ISSN:0014-4851
1741-2765
DOI:10.1007/s11340-018-00466-z