Mechanical properties of freely suspended semiconducting graphene-like layers based on MoS2

Abstract

We fabricate freely suspended nanosheets of MoS2 which are characterized by quantitative optical microscopy and high resolution friction force microscopy. We study the elastic deformation of freely suspended nanosheets of MoS2 using an atomic force microscope. The Young's modulus and the initial pre-tension of the nanosheets are determined by performing a nanoscopic version of a bending test experiment. MoS2 sheets show high elasticity and an extremely high Young's modulus (0.30 TPa, 50% larger than steel). These results make them a potential alternative to graphene in applications requiring flexible semiconductor materials.

Conference Proceeding (Trends in NanoTechnology 2011, Tenerife SPAIN); Nanoscale Research Letters, (2012) 7:233

References in corpus (6)

• Two Dimensional Atomic Crystals
• Graphene Nano-Ribbon Electronics
• Elastic properties of freely suspended MoS2 nanosheets
• Anomalies in thickness measurements of graphene and few layer graphite crystals by tapping mode atomic force microscopy
• Optical identification of atomically thin dichalcogenide crystals
• Reversible hydrogenation and band gap opening of graphene and graphite surfaces probed by scanning tunneling spectroscopy

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