Probing interlayer shear thermal deformation in atomically-thin van der Waals layered materials.

ABSTRACT: Atomically-thin van der Waals layered materials, with both high in-plane stiffness and bending flexibility, offer a unique platform for thermomechanical engineering. However, the lack of effective characterization techniques hinders the development of this research topic. Here, we develop a direct experimental method and effective theoretical model to study the mechanical, thermal, and interlayer properties of van der Waals materials. This is accomplished by using a carefully designed WSe₂-based heterostructure, where monolayer WSe₂ serves as an in-situ strain meter. Combining experimental results and theoretical modelling, we are able to resolve the shear deformation and interlayer shear thermal deformation of each individual layer quantitatively in van der Waals mat

SUBMITTER: Zhang L 

PROVIDER: S-EPMC9271035 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature