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[18p-P3-13] Thermoelectric properties calculated by space charge model
Keywords:Oxide thermoelectric material, Seebeck coefficient, space charge
Thermoelectric (TE) properties of various TE materials are possible to be understood by Fermi integral method, narrow band model, and space charge model. Seebeck coefficient (S) of TE material is usually measured within Somerfeld approximation: S~T. In Recent, however, high |S| values (200μV/K) are reported in experimental studies about oxide TE materials, and their values can be estimated by space charge model.
The space charge model is proposed by Mahan, and is defined at low temperature. Here, we tried to modify the space charge model with defect structure in order to estimate TE properties in high temperature, and its results are reported.
The space charge model is proposed by Mahan, and is defined at low temperature. Here, we tried to modify the space charge model with defect structure in order to estimate TE properties in high temperature, and its results are reported.