Abstract
We develop a model based on first principles calculations and experimental data for the thermoelectric properties of p-type CaMg2Bi2. The thermoelectric performance was assessed and optimized based on the model. The model predicts bipolar reduction of ZT at high temperatures (e.g. > 800 K). This indicates the thermoelectric performance of the material can be further optimized by tuning the carrier concentration beyond the bipolar regime.
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