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首页> 外文会议>Nanoscale thermoelectric materials: Thermal and electrical transport, and applications to solid-state cooling and power generation >Quaternary Chalcogenide Nanocrystals: Synthesis of Cu_2ZnSnSe_4 by Solid State Reaction and their Thermoelectric Properties
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Quaternary Chalcogenide Nanocrystals: Synthesis of Cu_2ZnSnSe_4 by Solid State Reaction and their Thermoelectric Properties

机译：第四级硫族化物纳米晶体：固相反应合成Cu_2ZnSnSe_4及其热电性质

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摘要

In this paper, synthesis of Cu_2ZnSnSe_4 (CZTSe) materials by using simple and cost-effective solid state reaction method from the elemental Cu, ZnO, SnO and elemental Se powders are carried out. The SEM images show spherical, non-uniform size with aggregation of nanopowders. The phase separation and thermal analysis of the milled powders suggested that most of the starting powders reacted because of a mechanical alloying effect during milling process. After the solid state reaction at above 500 ℃, the nanopowders crystallized into stannite single phase, which are confirm by XRD spectra. The thermoelectric properties of synthesized powder are under study.
机译：本文采用简单，经济高效的固相反应方法，从元素铜，ZnO，SnO和元素硒粉中合成了Cu_2ZnSnSe_4（CZTSe）材料。 SEM图像显示球形的，不均匀的尺寸以及纳米粉末的聚集。研磨粉末的相分离和热分析表明，由于研磨过程中的机械合金化作用，大多数起始粉末都会发生反应。经过500℃以上的固相反应后，纳米粉体结晶为菱钛矿单相，并用XRD谱证实。合成粉末的热电性能正在研究中。

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