Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni$_{1-x}$Cu$_x$)$_2$Al$_3$

Substitution of Cu for Ni in the Kondo lattice system CeNi $_{2}$ Al $_{3}$ results in a simultaneous optimization of the three interdependent thermoelectric parameters: thermoelectric power, electrical and thermal conductivities, where the electronic change in conduction band induced by the extra electron of Cu is shown to be crucial. The obtained thermoelectric figure of merit $z T$ amounts to 0.125 at around 100 K, comparable to the best values known for Kondo compounds. The realization of ideal thermoelectric optimization in Ce(Ni $_{1 - x}$ Cu $_{x}$ ) $_{2}$ Al $_{3}$ indicates that proper electronic tuning of Kondo compounds is a promising approach to efficient thermoelectric materials for cryogenic application.

Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni $_{1 - x}$ Cu $_{x}$ ) $_{2}$ Al $_{3}$

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Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni $_{1 - x}$ Cu $_{x}$ ) $_{2}$ Al $_{3}$

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Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni1−x1−x​Cuxx​)22​Al33​

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Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni1−x1−x​Cuxx​)22​Al33​

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Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni $_{1 - x}$ Cu $_{x}$ ) $_{2}$ Al $_{3}$

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Simultaneously optimizing the interdependent thermoelectric parameters in Ce(Ni $_{1 - x}$ Cu $_{x}$ ) $_{2}$ Al $_{3}$

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AI智能校验