Comparative analysis of the thermoelectric properties of the non-textured and textured Bi₁.₉Gd₀.₁Te₃ compounds

Abstract

Features in thermoelectric properties of non-textured and textured Bi1.9Gd0.1Te3 compounds are analysed. Cold isostatic pressuring was applied to prepare non-textured samples, whereas textured samples were fabricated via spark plasma sintering. The same starting powder was used for both preparation methods. Texturing [001] axis coincided with direction of spark plasma sintering pressuring. Thermoelectric properties of non-textured sample are isotropic, that is due to random grains orientation