Abstract—

We have demonstrated two processes for the synthesis of zinc antimonide powder using rapid melt cooling: melt spinning and cooling in a liquid. The elemental and phase compositions and surface morphology of hot-pressed undoped and 3 wt % In-doped β-Zn₄Sb₃ samples have been studied by scanning electron microscopy, X-ray diffraction, and optical microscopy, and their Seebeck coefficient, electrical conductivity, and thermal conductivity have been measured in the range 300–700 K. Indium doping has been shown to reduce the lattice thermal conductivity of the material by a factor of 1.5. The 600-K thermoelectric figure of merit of the undoped sample (ZT = 0.8) is half that of the doped sample (ZT = 1.5). We have assessed the effect of thermal cycling in the range 300–700 K on the Seebeck coefficient and electrical conductivity of the samples.

中文翻译：

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锑化锌的制备及热电性能

摘要-

我们已经展示了两种使用快速熔体冷却合成锑化锌粉末的方法：熔体纺丝和液体冷却。通过扫描电子显微镜、X 射线衍射和光学显微镜研究了热压未掺杂和 3 wt% In 掺杂 β-Zn ₄ Sb ₃样品的元素和相组成和表面形貌，以及它们的塞贝克系数、电学电导率和热导率的测量范围为 300-700 K。已显示铟掺杂可将材料的晶格热导率降低 1.5 倍。未掺杂样品 ( ZT = 0.8)的 600-K 热电品质因数是掺杂样品 ( ZT= 1.5）。我们已经评估了 300-700 K 范围内的热循环对样品的塞贝克系数和电导率的影响。