Recent advances in oxide thermoelectric materials and modules
Recent advances in oxide thermoelectric materials and modules
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DOI：
10.1016/j.vacuum.2017.04.015
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发表时间：
2017-12-01
期刊：
影响因子：
4
通讯作者：
Tiwari, Ashutosh
中科院分区：
文献类型：
--
作者：
Yin, Yinong;Tudu, Bharati;Tiwari, Ashutosh
随着对不可再生资源枯竭的日益关注，余热回收已成为解决能源短缺问题的有效途径之一。氧化物热电材料具有成本低、环境友好、高温化学稳定等优点。然而，与传统的热电材料相比，由于它们的低电导率和高热导率，它们仅表现出适度的热电性能。已经进行了许多研究以通过掺杂来改善它们的热电响应。这些氧化物材料主要包括p型Ca3Co4O9和n型ZnO、SrTiO 3和CaMnO 3。通过将这两种类型的热电氧化物串联连接，可以获得能够产生相当大的功率的模块。本文综述了近年来p型和n型热电氧化物的研究进展。我们讨论了这些氧化物的电子结构，因为它在确定热电性能中起着重要的作用。我们还讨论了使用这些热电氧化物对制造的先进模块。(C)2017爱思唯尔有限公司版权所有
Due to the growing concern on depletion of non-renewable resources, waste heat harvesting has become one of the effective approaches for solving the energy shortage issue. Oxide thermoelectric materials have the advantages of low cost, environment-friendly manufacturing and chemical stability at high temperatures. However, compared to traditional thermoelectric materials, they exhibit only modest thermoelectric properties due to their low electrical- and high thermal conductivity. Numerous studies have been done to improve their thermoelectric response by doping. These oxide materials mainly include the p-type Ca3Co4O9 and n-type ZnO, SrTiO3, and CaMnO3. By connecting these both types of thermoelectric oxides in series, a module which is capable of generating considerable power can be obtained. In this review, we present the progress made on p-type and n-type thermoelectric oxides in recent years. We discuss the electronic structure of these oxides as it plays an important role in determining the thermoelectric properties. We also discuss the advanced modules which have been fabricated using these thermoelectric oxide couples. (C) 2017 Elsevier Ltd. All rights reserved.