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Thermoelectric figure of merit of Bi/Pb_{1-x}Eu_{x}Te superlattices
| Title: | Thermoelectric figure of merit of Bi/Pb_{1-x}Eu_{x}Te superlattices |
| Authors: | Koga, T. Browse this author →KAKEN DB | | Rabin, O. Browse this author | | Dresselhaus, M. S. Browse this author |
| Issue Date: | Dec-2000 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review B |
| Volume: | 62 |
| Issue: | 24 |
| Start Page: | 16703 |
| End Page: | 16706 |
| Publisher DOI: | 10.1103/PhysRevB.62.16703 |
| Abstract: | 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. |
| Rights: | Copyright © 2000 American Physical Society |
| Relation: | http://www.aps.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/14682 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 古賀 貴亮
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