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説明:

Thermoelectric materials can utilize the Seebeck effect to convert electrical into thermal energy and vice versa. State-of-the-art research focuses on semiconductors as the band gap in their electronic density of states results in large values of the Seebeck coefficient. However, recent results suggest that certain metallic alloys such as NixAu1−x can also feature promising thermoelectric properties, relevant for technological applications [Sci. Adv. 9, eadj1611 (2023)]. In this work, we study the thermoelectric properties of NixAu1−x films on different substrates, with additional focus on a cost-efficient synthesis. Ultimately, a large power factor of 11.2mW/mK2 is achieved at 614K in Ni0.27Au0.73. Furthermore, by neglecting the phonon contribution to thermal conduction, which is negligibly small in these metallic systems well-obeying the Wiedemann-Franz law, a figure of merit of zT = 0.15 is obtained at 763 K.

権利情報:

• In Copyright
  ©2024 American Physical Society

キーワード: thermoelectric

刊行年月日: 2024-09-25

出版者: American Physical Society (APS)

掲載誌:

• Physical Review Materials (ISSN: 24759953) vol. 8 issue. 9 095403

研究助成金:

• Japan Science and Technology Agency JPMJMI19A1

原稿種別: 査読前原稿 (Author's original)

MDR DOI: https://doi.org/10.48505/nims.4812

公開URL: https://doi.org/10.1103/physrevmaterials.8.095403

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更新時刻: 2024-10-08 12:30:54 +0900

MDRでの公開時刻: 2024-10-08 12:30:54 +0900