Controlled Synthesis of Ultrathin PtSe₂ Nanosheets with Thickness-Tunable Electrical and Magnetoelectrical Properties.

ABSTRACT: Thickness-dependent chemical and physical properties have gained tremendous interest since the emergence of two-dimensional (2D) materials. Despite attractive prospects, the thickness-controlled synthesis of ultrathin nanosheets remains an outstanding challenge. Here, a chemical vapor deposition (CVD) route is reported to controllably synthesize high-quality PtSe₂ nanosheets with tunable thickness and explore their thickness-dependent electronic and magnetotransport properties. Raman spectroscopic studies demonstrate all E_g , A_{1 g} , A_{2 u} , and E_u modes are red shift in thicker nanosheets. Electrical measurements demonstrate the 1.7 nm thick nanosheet is a semiconductor with room temperature field-effect mobility o

SUBMITTER: Ma H 

PROVIDER: S-EPMC8728827 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature