Fabrication and thermoelectric properties of bulk VSe2 with layered structure

Transition metal dichalcogenides (TMDs) with layered structures possess excellent electrical and thermal transport properties. In this work, bulk VSe 2 sample with layered structure was fabricated by a conventional solid-state reaction method followed with spark plasma sintering process. The microstructure as well as thermoelectric properties were systematically studied. Bulk VSe 2 possesses high electrical conductivity but relatively low Seebeck coefficient , and sample along the direction parallel to the pressing axis has a lower thermal conductivity . The maximum ZT value of 0.023 was obtained at 700 K for sample along the direction parallel to the pressing axis.