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- W2142869440 abstract "Abstract Understanding the electron and phonon transport characteristics is crucial for designing and developing high performance thermoelectric materials. Weak scattering effects on charge carriers, characterized by deformation potential and alloy scattering potential, are favorable for thermoelectric solid solutions to enable high carrier mobility and thereby promising thermoelectric performance. Mg 2 (Si,Sn) solid solutions have attracted much attention due to their low cost and environmental compatibility. Usually, their high thermoelectric performance with ZT ∼ 1 is ascribed to the band convergence and reduced lattice thermal conductivity caused by alloying. In this work, both a low deformation potential Ξ = 13 eV and a low alloy scattering potential U = 0.7 eV are found for the thermoelectric alloys by characterizing and modeling of thermoelectric transport properties. The band convergence is also verified by the increased density‐of‐states effective mass. It is proposed that, in addition to band convergence and reduced lattice thermal conductivity, the low deformation potential and alloy scattering potential are additional intrinsic features that contribute to the high thermoelectric performance of the solid solutions." @default.
- W2142869440 created "2016-06-24" @default.
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- W2142869440 date "2013-04-30" @default.
- W2142869440 modified "2023-10-13" @default.
- W2142869440 title "Low Electron Scattering Potentials in High Performance Mg<sub>2</sub>Si<sub>0.45</sub>Sn<sub>0.55</sub>Based Thermoelectric Solid Solutions with Band Convergence" @default.
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- W2142869440 doi "https://doi.org/10.1002/aenm.201300174" @default.
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