无机材料学报 ›› 2019, Vol. 34 ›› Issue (3): 269-278.DOI: 10.15541/jim20180248

所属专题: 热电材料与器件

• 综述 • 上一篇    下一篇

热电器件的界面和界面材料

胡晓凯1,4, 张双猛1, 赵府1,2, 刘勇1,3, 刘玮书1   

  1. 1. 南方科技大学 材料科学与工程系, 深圳 518055;
    2. 南方科技大学 前沿与交叉科学研究院, 深圳 518055;
    3. 中国航发北京航空材料研究院, 北京100095;
    4. 迪肯大学 前沿材料研究所, 吉郎 3216, 澳大利亚
  • 收稿日期:2018-06-21 修回日期:2018-08-23 出版日期:2019-03-20 发布日期:2019-02-26
  • 作者简介:胡晓凯(1978-), 男, 博士. E-mail: xiaokai.hu@deakin.edu.au
  • 基金资助:
    “千人计划”-青年人才项目;深圳市“孔雀人才计划”;广东省“珠江人才计划”-创新创业团队项目(2016ZT06G587)

Thermoelectric Device: Contact Interface and Interface Materials

HU Xiao-Kai1,4, ZHANG Shuang-Meng1, ZHAO Fu1,2, LIU Yong1,3, LIU Wei-Shu1   

  1. 1. Department of Material Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
    2. Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China;
    3. AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China;
    4. Institute for Frontier Materials, Deakin University, Geelong 3216, Australia;
  • Received:2018-06-21 Revised:2018-08-23 Online:2019-03-20 Published:2019-02-26
  • Supported by:
    National 1000-Youth Talent;Shenzhen Talent Peacock Plan;Guangdong InnovativeandEntrepreneurialResearch Team Program (2016ZT06G587)

摘要:

基于塞贝克效应的热电转换技术, 在大量分散的低品位废热转换电能方面有着不可替代的优势。以热电优值ZT为性能指标的热电材料研发成为新能源材料领域研究的热点之一。近年来, 大量新型中温热电材料被相继发现, 然而新型热电材料的产业化应用, 尤其是在温差发电方面的进展尤为缓慢, 其中热电器件中的材料界面问题严重制约了热电转换技术的应用进程。本文从Bi2Te3型器件在温差发电方面所遇到的技术瓶颈为例, 阐述热电器件中的界面关键技术, 并归纳出电极接触界面需要综合考虑低的界面电阻、高的结合强度、以及好的高温稳定性能。然后总结了与Bi2Te3、PbTe、CoSb3基三种热电材料相关的界面材料研究进展。

 

关键词: 热电器件, 金属化层, 界面电阻, 高温稳定, 综述

Abstract:

Thermoelectric power generation via Seebeck effect features an unique advantage in converting large amount of distributed and low-grade waste heat into electricity. Thermoelectric materials have become a hot topic of research in the field of new energy materials, guided by the high figure of merit ZT. Although various mid-temperature thermoelectric materials were discovered, the industrial application of these materials, especially in power generation applications, progressed very slowly. The staggering interface technology associated with thermoelectric device restricted the advance of thermoelectric conversion technology. In this review, the bottleneck issues of utilizing Bi2Te3-based devices for power generation were used as an example to illustrate the critical interface technologies. The key issues at designing electrode contact interfaces were summarized, including low contact resistance, high bonding strength, and superior thermal chemical stability at high temperature. The recent progress on the metallization and interfacial barrier layer for typical materials of Bi2Te3, PbTe and CoSb3 were also reviewed.

Key words: thermoelectric device, metallization, contact resistance, high-temperature stability, review

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