Synthetic Strategy and Structural and Optical Characterization of Thin Highly Crystalline Titanium Disulfide Nanosheets

Abstract

Two-dimensional (2D) nanomaterials have recently received significant attention because of their attractiveness for use in many nanostructured devices. Layered transition-metal dichalcogenides are of particular interest because reducing their dimensionality causes changes in their already anisotropic physical and chemical properties. The present study describes the first bottom-up solution-phase synthesis of thin highly crystalline titanium disulfide (TiS2) nanosheets (NSs) using abundant low-cost molecular precursors. The obtained TiS2 NSs have average dimensions of ∼500 nm × 500 nm in the basal plane and have thicknesses of ∼5 nm. They exhibit broad absorption in the visible that tails out into the near-infrared. The obtained results demonstrate new opportunities in synthesizing low-dimensional 2D nanomaterials with potential use in various photochemical energy applications.

Near‐Infrared Plasmonic 2D Semimetals for Applications in Communication and Biology

“…Moreover, Figure 3 Figure S2, Supporting Information) of obtained TiS 2 NSs show, they are very pure in phase without any oxide and particle by-products, which frequently appeared in previous reports. [ 28 ] All these features confi rm the single-crystal characteristics of the obtained TiS 2 NSs with a typical lateral size ( L ) of ≈300 nm and thickness ( H ) of ≈16 nm (the defi nition of L and H are presented in the inset of Figure 3 a). Hence, such ultrathin NSs provide strong confi nement of the charges and single crystal structures ensure the high mobility which is required for the strong collective oscillation of LSPRs.…”

Sandwich‐Like Ultrathin TiS2 Nanosheets Confined within N, S Codoped Porous Carbon as an Effective Polysulfide Promoter in Lithium‐Sulfur Batteries

“…[12] This will not only decrease the loading amount of catalyst to further improve the energy density of the electrode but also provide a large surface area to realize the uniform adsorption of LiPSs and deposition of the discharge products (Li 2 S 2 /Li 2 S). [14] Smaller and thinner TiS 2 sheets can be obtained by the bottomup colloidal synthetic method, [15] or liquid exfoliation of bulk TiS 2 . [14] Smaller and thinner TiS 2 sheets can be obtained by the bottomup colloidal synthetic method, [15] or liquid exfoliation of bulk TiS 2 .…”

Interface Characterization and Control of 2D Materials and Heterostructures

“…For printed electronics and additive manufacturing, direct growth of 2D materials from solution‐phase precursors eliminates the need for top‐down exfoliation. Indeed, direct growth of 2D materials and heterostructures from the solution phase has been demonstrated for CdSe, PbSe, 2D perovskites, Sb 2 Te 3 /Bi 2 Te 3 heterostructures, and various TMDCs . For colloidal synthesis, the templating effect of a 2D substrate is missing.…”