Thermoelectric Properties and a Defective Subsystem of Heterophasic Materials on the Basis of a Lead Telluride with Impurity of Antimony

Abstract

The results of the study of thermoelectric properties and the defective subsystem of lead telluride doped by antimony PbTe:Sb (8%), promising material for the creation of heat energy converters on their basis. The regularities in the behavior of the properties investigated, which are due to the biphasicity of the material and the significant influence of the technological factors of obtaining samples on their defective subsystem, are established. The modeling of the defect subsystem of PbTe:Sb crystals was carried out taking into account thepresence of additional phase inclusions and it was found that dominant point defects are internode atoms of antimony.

Improving thermoelectric performance by constructing a SnTe/ZnO core–shell structure

“…For example, the well-investigated lead telluride (PbTe) based TE materials have obtained high ZT values, especially p-type PbTe. [13][14][15] However, the toxicity of lead element limits their large-scale applications. SnTe-based TE materials have attracted much interest for their lead-free and environment-friendly characteristics.…”