The charge carrier density modulation in off-stoichiometric ZrNiSn leads to enhanced thermoelectric performance

Approaching the minimum lattice thermal conductivity in TiCoSb half-Heusler alloys by intensified point-defect phonon scattering

“…17,18 In addition to chalcogenides, 19,20 skutterudites, 21,22 silicides 23,24 and clathrates 25,26 extensively studied over the last decade for power generation applications, half-Heuslers (HH) alloys are promising candidates owing to their decent thermoelectric performance, low cost, composed via environmentallyfriendly elements, good thermal stability and high mechanical robustness. [27][28][29][30] The cubic crystal structure of HH compounds with the XYZ stoichiometry is built up by four interpenetrated face-centered cubic (fcc) lattices with one vacant position. Semiconducting properties generally emerge when the chemical composition is valence-balanced.…”