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Article Dans Une Revue Physical Review Applied Année : 2024

Selective energy filtering in a multiple-quantum-well nanodevice: The quantum cascade cooler

Résumé

Using quantum transport simulations, we study the operating principle of a proposed quantum cascade cooler, a multiple-quantum-well structure whose cooling capabilities rely on combined resonant tunneling and thermionic-emission filtering. We couple charge and heat transport by self-consistently solving nonequilibrium Green’s functions and the heat equation, and we subsequently calculate the thermodynamic properties of the electrons using noninvasive virtual probes. We show that this device exhibits bias-dependent electron-temperature oscillations emerging from electron-phonon interactions and intersubband transitions. Finally, we show the advantages of a multiple-quantum-well structure over a single quantum well and discuss the actual potential for such a structure to effectively cool down the crystal lattice upon optimization.
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hal-04576905 , version 1 (15-05-2024)

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Guéric Etesse, Chloé Salhani, Xiangyu Zhu, Nicolas Cavassilas, Kazuhiko Hirakawa, et al.. Selective energy filtering in a multiple-quantum-well nanodevice: The quantum cascade cooler. Physical Review Applied, 2024, 21 (5), pp.054010. ⟨10.1103/PhysRevApplied.21.054010⟩. ⟨hal-04576905⟩
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