（Bi1−xInx）2Te3固溶体的Van der Waals外延，具有广泛的工作温度范围，用于薄膜热电器件

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-07-09 DOI:10.1063/5.0264737

Xueying Sun, Junye Li, Peng Zhao, Rui Qi, Yingchao Liu, Haining Ji, Handong Li, Xiaobin Niu, Zhiming Wang

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引用次数: 0

摘要

本文研究了在云母衬底上具有层状结构的亚稳（Bi1−xInx）2Te3薄膜的生长、电子输运特性和热电性能。在非热力学平衡生长条件下，铟的溶解度可以达到32.27 at。%在Bi2Te3晶格中。（Bi1−xInx）2Te3固溶体表现出n型可调热电特性，通过调整铟掺杂量达到溶解度极限，Seebeck系数和功率因数分别达到105.4 μV/K和224.6 μW m−1 K−2。（Bi1−xInx）2Te3的热电性能在高达400k时始终稳定，并突出了其在关键的近环境工作状态下热电应用的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Van der Waals epitaxy of (Bi1−xInx)2Te3 solid solutions with a broad operating temperature range for thin-film thermoelectrics

This work examines the growth, electronic transport properties, and thermoelectric performance of metastable (Bi1−xInx)2Te3 films that have a layered structure on mica substrates. Under non-thermodynamic equilibrium growth conditions, it is possible to achieve a large indium solubility of 32.27 at. % in the Bi2Te3 lattice. The obtained (Bi1−xInx)2Te3 solid solutions exhibit n-type tunable thermoelectric characteristics with maximized Seebeck coefficient and power factor of 105.4 μV/K and 224.6 μW m−1 K−2, respectively, by tuning the indium doping level to approach the solubility limit. The thermoelectric properties of (Bi1−xInx)2Te3 are consistently stable up to 400 K and highlight their potential for thermoelectric applications in a critical near-ambient operating regime.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.