Abstract
High pressure has a strong impact on materials. In regards to thermoelectrics, pressure is able to significantly improve their thermoelectric (TE) performance (i.e., power factor and figure of merit), and for this reason, pressure is a powerful tool for energy conversion technologies. This paper reviews studies on thermoelectric properties of relevant materials (PbTe, PbSe, Bi2Te3, Sb2Te3, and others) under pressure. It is figured out that enhanced thermoelectric properties of lead telluride and bismuth telluride appear beyond a range of energy gaps proposed for a “conventional” thermoelectricity in narrow-gap semiconductors. An example given for SmTe hints that pressure effects on the thermoelectric performance may be tremendous. This review also attends studies on high-pressure thermoelectric properties in the presence of a nonzero magnetic field. Influence of magnetic-field-related effects, such as magnetoresistance, magnetothermopower (Nernst−Ettingshausen effects), and Maggi−Reghi−Leduc effect is ana...
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