Abstract
Polycrystalline \({\hbox {La}}_{1-x}{\hbox {Sr}}_x{\hbox {ZnAsO}}\) (0.00 \(\le \) x \(\le \) 0.075 ) was synthesized by solid-state reactions followed by hot pressing. The sign of the Seebeck coefficient changed from negative to positive by Sr doping, indicating that holes were successfully doped as a result of Sr substitutions. The maximum power factor of 0.118 mW/m K\(^2\) was attained at \(T = 747\) K in \(x = 0.05\). The thermal conductivity was relatively low at \(T = 773\) K, with a value of approximately 1.9 W/m K independent of Sr doping. These results led to a dimensionless figure-of-merit ZT of 0.044 at \(T = 747\) K in \(x = 0.05\).
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Kimura, Y., Kunioka, H., Kihou, K. et al. Thermoelectric Properties of \({\hbox {La}}_{1-x}{\hbox {Sr}}_x{\hbox {ZnAsO}}\). J. Electron. Mater. 49, 6715–6720 (2020). https://doi.org/10.1007/s11664-020-08439-6
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DOI: https://doi.org/10.1007/s11664-020-08439-6