Mechanical properties of MoS2
The mechanical properties of MoS2 can be investigated by suspending it over circular trenches and puncturing it by means of Atomic Force Microscopy. Top: MoS2 flake suspended over circular trenches.Using such techniques, the Young modulus of atomically thin flakes of MoS2 can be extracted. It turned out that MoS2 has a Young modulus value of about 0.3TPa.
ReferencesStretching and Breaking of Ultrathin MoS2. Bertolazzi et al, Nano Letters, 2011. Single-layer MoS2 flakes are suspended over trenches and punctured by AFM to determine in-plane stiffness and the Young modulus.Elastic properties of freely suspended MoS2 nanosheets. Castellanos-Gomez et al, Advanced Functional Materials, 2012. Similar results as the paper above.