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- W1850248 abstract "Thermoelectric properties of layered oxyselenides La1−xSrxCuOSe (x=0.00 to 0.20) were investigated to evaluate the potential as thermoelectric material. Temperature dependence of the electrical conductivity and Seebeck coefficient measured in a temperature range of 373 to 673 K indicated that nondoped LaCuOSe was a p-type degenerate semiconductor due to Cu vacancies, while Sr-doped materials with x=0.05 to 0.20 were p-type metals. The electrical conductivity increased and Seebeck coefficient decreased with increasing Sr concentration up to x=0.10 in La1−xSrxCuOSe, suggesting that the effective hole carriers increase with increasing Sr content up to x=0.10. Thermoelectric power factors were drastically enhanced by the Sr doping, and the value reached 1.0−1.4×10−4 W m−1 K−2 for La0.95Sr0.05CuOSe. Thermal conductivities measured for the materials with x=0.00 and 0.05 were 2.1 W m−1 K−1 and 2.3 W m−1 K−1 at room temperature, respectively. These results lead to an estimation of Z value of 4.4×10−5 K−1 for La0.95Sr0.05CuOSe." @default.
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- W1850248 date "2004-03-18" @default.
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- W1850248 title "Thermoelectric properties of layered oxyselenides La1−xSrxCuOSe (x=0 to 0.2)" @default.
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- W1850248 doi "https://doi.org/10.1063/1.1646438" @default.
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