Reduced Lattice Thermal Conductivity in Thermoelectric α-MgAgSb via Sb₂Te₃ Powder Atomic Layer Deposition.

ABSTRACT: α-MgAgSb is an environmentally friendly alternative to traditional tellurium-based thermoelectric materials for near room temperature applications. In this study, we enhance the thermoelectric properties of α-MgAgSb by introducing a secondary Sb₂Te₃ phase using powder atomic layer deposition (powder ALD), with the aim to modify phonon scattering mechanisms and reduce the lattice thermal conductivity. Powder ALD is a thin-film deposition technique that allows for the deposition of self-limiting monolayers on high aspect ratio surfaces, enabling the conformal coating of nanopowder regardless of particle morphology. Sb₂Te₃ was selected as the coating material due to its oxygen-free synthesis route and its potential for good interfacial compatibility

SUBMITTER: Garcia Santamaria I 

PROVIDER: S-EPMC12926952 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature