Thermoelectric Properties of Ba_2-xEu_xZnSb₂, a Zintl Phase with One-Dimensional Covalent Chains.

ABSTRACT: The compound Ba₂ZnSb₂ has been predicted to be a promising thermoelectric material, potentially achieving zT > 2 at 900 K due to its one-dimensional chains of edge-shared [ZnSb_4/2]^4- tetrahedra and interspersed Ba cations. However, the high air sensitivity of this material makes it difficult to measure its thermoelectric properties. In this work, isovalent substitution of Eu for Ba was carried out to make Ba_2-xEu_xZnSb₂ in order to improve the stability of the material in air and to allow characterization of thermal and electronic properties of three different compositions (x = 0.2, 0.3, and 0.4). Polycrystalline samples were synthesized using binary precursors via ball milling and annea

SUBMITTER: Hauble AK 

PROVIDER: S-EPMC10114066 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature