Elastic properties of freely suspended MoS2 nanosheets

Abstract

We study the elastic deformation of few layers (5 to 25) thick freely suspended MoS2 nanosheets by means of a nanoscopic version of a bending test experiment, carried out with the tip of an atomic force microscope. The Young's modulus of these nanosheets is extremely high (E = 0.33 TPa), comparable to that of graphene oxide, and the deflections are reversible up to tens of nanometers.

11 pages, 7 figures (including supplementary information)

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• Two Dimensional Atomic Crystals
• Energy Band Gap Engineering of Graphene Nanoribbons
• Anomalous Lattice Vibrations of Single and Few-Layer MoS2
• Graphene Nano-Ribbon Electronics
• Atomic Structure of Graphene on SiO2
• Anomalies in thickness measurements of graphene and few layer graphite crystals by tapping mode atomic force microscopy
• Optical identification of atomically thin dichalcogenide crystals
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