Co4Sb12晶圆矿中Sb取代协同填充In和Ga：一种有利于高功率因数的复合效果

IF 3.5 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-09-17 DOI:10.1016/j.jssc.2025.125603

Andrei Novitskii , Cédric Bourgès , Krushna Kumari Raut , Jean-François Halet , Takao Mori

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引用次数: 0

摘要

我们报道了一种不含稀土的多层填充策略，以提高Co4Sb12滑石的热电性能。In和Ga的共填充，以及部分Sb取代Te，产生了有益的复合效果，细化了晶粒尺寸，调节了填料的溶解度。在In0.3Ga0.1Co4Sb11.8Te0.2中获得了最佳的In:Ga比，在300 ~ 600 K范围内获得了较高的功率因数（≈40 μWcm−1 K−2），接近于稀土填充的skutterudites的功率因数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Synergistic In and Ga Co-filling with Sb substitution in Co4Sb12 skutterudites: A beneficial compositing effect for high power factor

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Synergistic In and Ga Co-filling with Sb substitution in Co4Sb12 skutterudites: A beneficial compositing effect for high power factor

We report a rare-earth–free multi-filling strategy to enhance the thermoelectric performance of Co₄Sb₁₂ skutterudites. Co-filling with In and Ga, along with partial Sb for Te substitution induces beneficial compositing effect, refines grain size, and tunes filler's solubility. An optimal In:Ga ratio, achieved in In_0.3Ga_0.1Co₄Sb_11.8Te_0.2, maximizes dodecahedral site occupancy and yields a high power factor (≈ 40 μWcm⁻¹ K⁻²) in the 300−600 K range, reaching values close to that of rare-earth–filled skutterudites.

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.