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Ab initio study of electron mean free paths and thermoelectric properties of lead telluride

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FIG. 1: (a) The mobility, (b) the electrical conductivity, (c) the Seebeck coefficient, and (d) the power factor of PbTe as a function of carrier concentration at 300 K with and without considering the screening effect
FIG. 3: (a) The electron mean free path as a function of energy with and without considering the screening effect
FIG. 5: (a) The accumulated electrical conductivity with respect to electron mean free path
FIG. 6: (a) The conductivity, (b) the Seebeck coefficient, (c) the electronic thermal conductivity compared with phonon thermal conductivity, (d) the bipolar thermal conductivity, (e) the total thermal conductivity and (f) the figure of merit zT of PbTe as

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