Optimized electronic properties and nano-structural features for securing high thermoelectric performance in doped GeTe.

Recently, thermoelectric (TE) materials have been attracting great attention due to their improved capability to convert heat directly into electricity. PbTe-based TE materials are among the most competitive ones; however, lead toxicity limits their potential applications. Thus, the current focus in the field is on the discovery of lead-free analogues.

Thermoelectric Properties of Hot-Pressed BaCuTe.

The aim of this study was to investigate the thermoelectric properties of hot-pressed BaCuTe as well as its stability with regards to Cu ion movement. For the latter, two single crystals were picked from pellets after they were measured up to 573 and 673 K, which showed no significant changes in the occupancies of any of the Cu sites. All investigated BaCuTe materials displayed low thermal conductivity values (<1 W m K) and appropriate electrical conductivity values (300-600 Ω cm).

Thermoelectric and Mechanical Properties of Environmentally Friendly MgSiSnBi/SiC Composites.

In this work, polycrystalline n-type MgSiSnBi dispersed with wt % β-SiC nanoparticles ( = 0, 0.5, 1.0, 1.

Effect of mixed occupancies on the thermoelectric properties of BaCuSeTe polychalcogenides.

The title materials have been reported earlier to be p-type thermoelectrics when x = 0.1 and y = 0. Here, we studied the properties after varying the Cu and the Se/Te concentrations.