Synthesis, Crystal Structure and Thermoelectric Properties of the Type-I Clathrate Sn₃₈Sb₈I₈.

ABSTRACT: Semiconducting clathrates are a distinct class of inclusion compounds with considerable interest for thermoelectric applications. We report here the synthesis, crystal structure and thermoelectric properties of Sn₃₈Sb₈I₈. The compound was synthesized via planetary ball milling of the corresponding elements for 6 h and then sintering of amorphous mixture at 620 K for 3 days. The crystal structure of the polycrystalline product was determined via X-ray powder diffraction and Rietveld refinement as a type-I clathrate (a = 12.0390(2), space group Pm-3n, No. 223) with mixed-occupied Sn/Sb framework sites and fully occupied I guest sites. Further analysis on the chemical composition, nanomorphology and vibrational modes of the material was ca

SUBMITTER: Moutzouris N 

PROVIDER: S-EPMC12655030 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature