Nanotubes from Ternary WS_2(1-x)Se_2x Alloys: Stoichiometry Modulated Tunable Optical Properties.

ABSTRACT: Nanotubes of transition metal dichalcogenides such as WS₂ and MoS₂ offer unique quasi-1D properties and numerous potential applications. Replacing sulfur by selenium would yield ternary WS_2(1-x)Se_2x (0 ≤ x ≤ 1; WSSe) nanotubes, which are expected to reveal strong modulation in their absorption edge as a function of selenium content, x_Se. Solid WO_2.72 oxide nanowhiskers were employed as a sacrificial template to gain a high yield of the nanotubes with a rather uniform size distribution. Though sulfur and selenium belong to the same period, their chemical reactivity with oxide nanowhiskers differed appreciably. Here, the closed ampoule technique was utilized to achieve the completion of the solid-va

SUBMITTER: Sreedhara MB 

PROVIDER: S-EPMC9204813 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature