Thermoelectric figure of merit of Bi/Pb_{1-x}Eu_{x}Te superlattices

Koga, T.; Rabin, O.; Dresselhaus, M. S.

Physical Review B, 2000, 62(24), 16703-16706

Permalink : https://hdl.handle.net/2115/14682

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アクセス権	open access
URI	https://hdl.handle.net/2115/14682
タイトル	Thermoelectric figure of merit of Bi/Pb_{1-x}Eu_{x}Te superlattices
著者	Koga, T. ; Rabin, O. ; Dresselhaus, M. S.
e-Rad_Researcher 30374614 著者名 Koga, T.
著者名 Rabin, O.
著者名 Dresselhaus, M. S.
言語	英語
発行日	2000-12
出版者	American Physical Society
収録物名	Physical Review B
巻(号)	62(24)
ページ	16703-16706
抄録	An enhanced thermoelectric figure of merit Z_{3D}T is predicted for Bi/(111)Pb_{1-x}Eu_{x}Te superlattices. The values of Z_{3D}T obtained for x≈1 superlattices are 2.31, 1.55, and 1.61 at 300, 150, and 77 K, respectively, showing that they are promising candidates for thermoelectric elements in the temperature range 77–300 K. Even with x as small as 0.1, where the conduction-band offset ΔE_{c} is estimated to be 0.25 eV, the predicted Z_{3D}T values are 1.75, 1.16, and 1.18 at 300, 150, and 77 K, respectively. It is proposed that other families of Bi-based superlattices, such as Bi/(111)CdTe superlattices, should also be good candidates for low-temperature thermoelectric elements.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2000 American Physical Society
PISSN	0163-1829
EISSN	1095-3795
関連情報	URI http://www.aps.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.62.16703