Laser irradiation induced structural transformation in layered transition metal trichalcogenide nanoflakes.

ABSTRACT: Laser irradiation is a powerful tool in inducing changes in lattice structures and properties of two-dimensional (2D) materials through processes such as heating, bleaching, catalysis, etc. However, the underlying mechanisms of such transformations vary dramatically in different 2D materials. Here, we report the structural transformation of layered titanium trisulfide (TiS₃) to titanium disulfide (TiS₂) after irradiation. We systematically characterized the dependence of the transformation on laser power, flake thickness, irradiation time, and vacuum conditions using microscopic and spectroscopic methods. The underlying mechanism is confirmed as the heat-induced materials decomposition, a process that also occurs in many other transition metal trichalcogenide material

SUBMITTER: Zhang H 

PROVIDER: S-EPMC10520514 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature