Garrity, K.
(2016),
First principles search for n-type oxide thermoelectrics, Physical Review B, [online], https://doi.org/10.1103/PhysRevB.94.045122 (Accessed May 11, 2026)
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First principles search for n-type oxide thermoelectrics
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Abstract
Oxides have many potentially desirable characteristics for thermoelectric materials, including low cost and stability at high temperatures, but thus far there are few known high zT n-type oxide thermoelectrics. In this work, we use high-throughput first principles calculations to screen transition metal oxides, nitrides, and sulfides for candidate materials with high power factors and low thermal conductivity. We find a variety of promising materials, and we investigate these materials in detail in order to understand the mechanisms that cause them to have high power factors. These materials all combine a high density of states near the Fermi level with dispersive bands, reducing the trade-off between the Seebeck coefficient and the electrical conductivity, but they do so for several different reasons. In addition, our calculations indicate that many of our candidate materials have low thermal conductivity.Citation
Physical Review B
Volume
94
Pub Type
Journals
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Keywords
thermoelectrics, high-throughput, dft, oxides
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Created July 15, 2016, Updated November 10, 2018