Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance

doi:10.1016/j.scriptamat.2019.03.013

SIC OpenIR

	Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance
	Lu, Xiaofang; Lu, Ping; Fan, Yuchi; Zhou, Weiwei; Gu, Shijia; Zhou, Zhenxing; Zhang, Jie; Su, Li; Wang, Lianjun; Jiang, Wan
	2019-06-01
Source Publication	SCRIPTA MATERIALIA
ISSN	1359-6462
Volume	166 Pages:81
Subtype	Article
Abstract	A highly textured pure Sb2Te3 is fabricated via a hydrothermal method combined with high-pressure spark plasma sintering. The nanoscale texture gives rise to an extremely low thermal conductivity in the out-of-plane direction, while shows weak influence on the carrier mobility which reaches the level of single crystal. Microstructure analysis reveals large amount of low-angle boundaries, whose discriminated effect on scattering phonons and carriers should account for the observed phenomenon. Consequently, the structurally nanocrystalline electrical monocrystalline behavior leads to a high average ZT with peak value above 1 at 525 K, which is the best TE performance for undoped Sb2Te3. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keyword	Sb2Te3 Texture Low-angle boundary Thermoelectric properties
DOI	10.1016/j.scriptamat.2019.03.013
Language	英语
WOS Research Area	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics	Cited Times:6[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27082
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Lu, Xiaofang,Lu, Ping,Fan, Yuchi,et al. Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance[J]. SCRIPTA MATERIALIA,2019,166:81.
APA	Lu, Xiaofang.,Lu, Ping.,Fan, Yuchi.,Zhou, Weiwei.,Gu, Shijia.,...&Jiang, Wan.(2019).Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance.SCRIPTA MATERIALIA,166,81.
MLA	Lu, Xiaofang,et al."Structurally nanocrystalline electrically monocrystalline Sb2Te3 with high thermoelectric performance".SCRIPTA MATERIALIA 166(2019):81.

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