Structure Evolution and Bonding Inhomogeneity toward High Thermoelectric Performance in Cu₂CoSnS_4-xSe_x Materials.

ABSTRACT: Lightweight diamond-like structure (DLS) materials are excellent candidates for thermoelectric (TE) applications due to their low costs, eco-friendly nature, and property stability. The main obstacles restricting the energy-conversion performance by the lightweight DLS materials are high lattice thermal conductivity and relatively low carrier mobility. By investigating the anion substitution effect on the structural, microstructural, electronic, and thermal properties of Cu₂CoSnS_4-xSe_x, we show that the simultaneous enhancement of the crystal symmetry and bonding inhomogeneity engineering are effective approaches to enhance the TE performance in lightweight DLS materials. Particularly, the increase of x in Cu₂CoSnS_4-x

SUBMITTER: Parashchuk T 

PROVIDER: S-EPMC10311630 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature