In Situ TEM Study of Electrical Property and Mechanical Deformation in MoS₂/Graphene Heterostructures.

ABSTRACT: We present a versatile method for synthesizing high-quality molybdenum disulfide (MoS₂) crystals on graphite foil edges via chemical vapor deposition (CVD). This results in MoS₂/graphene heterostructures with precise epitaxial layers and no rotational misalignment, eliminating the need for transfer processes and reducing contamination. Utilizing in situ transmission electron microscopy (TEM) equipped with a nano-manipulator and tungsten probe, we mechanically induce the folding, wrinkling, and tearing of freestanding MoS₂ crystals, enabling the real-time observation of structural changes at high temporal and spatial resolutions. By applying a bias voltage through the probe, we measure the electrical properties under mechanical stress, revealing near-ohmic b

SUBMITTER: Giri S 

PROVIDER: S-EPMC11767539 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature