Elastic properties of freely suspended MoS2 nanosheets
Andres Castellanos-Gomez, Menno Poot, Gary A. Steele, Herre S. J. van, der Zant, Nicol\'as Agra\"it, Gabino Rubio-Bollinger
TL;DR
This study measures the elastic properties of freely suspended MoS2 nanosheets, revealing a very high Young's modulus and reversible deformation, which are crucial for flexible nanoelectronic applications.
Contribution
It provides the first nanoscopic bending test measurements of MoS2 nanosheets, demonstrating their high elasticity and potential for flexible devices.
Findings
Young's modulus of MoS2 nanosheets is approximately 0.33 TPa
Deflections are reversible up to tens of nanometers
Elastic properties are comparable to graphene oxide
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.
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