New Insights into Intrinsic Point Defects in V(2)VI(3) Thermoelectric Materials.

New Insights into Intrinsic Point Defects in V(2)VI(3) Thermoelectric Materials.
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对 V2VI3 热电材料本征点缺陷的新见解

DOI:
10.1002/advs.201600004
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发表时间:
2016-07
期刊:
影响因子:
15.1
通讯作者:
He, Jian
He, Jian
中科院分区:
材料科学1区
文献类型:
--
作者:
Zhu, Tiejun;Hu, Lipeng;Zhao, Xinbing;He, Jian

文献摘要

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缺陷和缺陷工程是许多材料研究领域的核心,包括热电研究领域。V2VI3热电材料的60年历史是一个很好的例子,说明了如何通过更好地理解和处理缺陷来恢复一类被认为成熟了几次的半导体材料的活力。本文综述了V2VI3化合物中未充分研究的本征点缺陷的形成和控制,以及它们与其他类型缺陷的相互作用,以提高热电性能。我们在这里提出了一个令人信服的情况下,本征点缺陷可以主动控制的非本征掺杂,也通过成分,机械和热控制在材料合成的各个阶段。在(χ,r)模型中总结了V2VI3化合物中本征点缺陷的最新理解,并应用于阐明施主样效应。这些新的见解不仅可以在其他热电材料中实现更具创新性的缺陷工程,而且在广泛的背景下,有助于先进功能材料的合理缺陷设计。
Defects and defect engineering are at the core of many regimes of material research, including the field of thermoelectric study. The 60‐year history of V2VI3 thermoelectric materials is a prime example of how a class of semiconductor material, considered mature several times, can be rejuvenated by better understanding and manipulation of defects. This review aims to provide a systematic account of the underexplored intrinsic point defects in V2VI3 compounds, with regard to (i) their formation and control, and (ii) their interplay with other types of defects towards higher thermoelectric performance. We herein present a convincing case that intrinsic point defects can be actively controlled by extrinsic doping and also via compositional, mechanical, and thermal control at various stages of material synthesis. An up‐to‐date understanding of intrinsic point defects in V2VI3 compounds is summarized in a (χ, r)‐model and applied to elucidating the donor‐like effect. These new insights not only enable more innovative defect engineering in other thermoelectric materials but also, in a broad context, contribute to rational defect design in advanced functional materials at large.
DOI: 10.1063/1.1777042
发表时间: 1961-01-01
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