Thickness-Dependent Elastic Softening of Few-Layer Free-Standing MoSe₂.

ABSTRACT: Few-layer van der Waals (vdW) materials have been extensively investigated in terms of their exceptional electronic, optoelectronic, optical, and thermal properties. Simultaneously, a complete evaluation of their mechanical properties remains an undeniable challenge due to the small lateral sizes of samples and the limitations of experimental tools. In particular, there is no systematic experimental study providing unambiguous evidence on whether the reduction of vdW thickness down to few layers results in elastic softening or stiffening with respect to the bulk. In this work, micro-Brillouin light scattering is employed to investigate the anisotropic elastic properties of single-crystal free-standing 2H-MoSe₂ as a function of thickness, down to three molecular layers. The so-ca

SUBMITTER: Babacic V 

PROVIDER: S-EPMC11468464 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature