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High-performance zinc antimonide thermoelectric thin films achieved by a layer-by-layer combination reaction approach

机译:高性能锌锑苷酸热电薄膜通过层逐层组合反应方法实现

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摘要

Zinc antimonide (Zn-Sb) is considered as a good candidate to replace the traditional TE materials due to its low cost, non-toxic, and high abundance of elements. In this work, layer-by-layer thin films were fabricated by sputtering Zn on the Sb precursor layer with a magnetron sputtering method, and an annealing process is performed on thin films to engage a self-assembled growth of Zn-Sb films. It is found that Zn-Sb film with good crystallinity was obtained after annealing at 300 °C for 10 min. Then, the influence of Zn layer thickness and annealing time on the structural, compositional, and thermoelectric properties for the Zn-Sb thin films were investigated. As a result, the thin film with mixed Zn_4Sb_3/ZnSb phases achieved a high power factor of 3.42 μWcm~(-1) K~(-2) when the Zn layer thickness was 600 nm. Additionally, the power factor was further optimized to 3.80 μWcm~(-1) K~(-2) after prolonging the annealing time up to 15 min.
机译:锌锑(Zn-Sb)被认为是替代传统TE材料的良好候选者,因为其低成本,无毒和高丰度元件。在该作品中,通过用磁控溅射方法溅射Zn,通过溅射Zn制造层逐层薄膜,并且在薄膜上进行退火过程,以接合Zn-Sb膜的自组装生长。发现在300℃下退火10分钟后获得具有良好结晶度的Zn-Sb膜。然后,研究了Zn-SB薄膜对结构,组成和热电性质对Zn-SB薄膜的影响的影响。结果,当Zn层厚度为600nm时,具有混合Zn_4SB_3 / ZnSB / ZnSB阶段的薄膜实现了3.42μWcm〜(-1)k〜(-2)的高功率因数。另外,在延长退火时间至15分钟后,功率因数进一步优化至3.80μWcm〜(-1)k〜(-2)。

著录项

  • 来源
    《Journal of materials science》 |2020年第19期|16968-16974|共7页
  • 作者单位

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

    Shenzhen Key Laboratory of Advanced Thin Films and Applications College of Physics and Optoelectronic Engineering Shenzhen University Shenzhen 518060 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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