Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe

doi:10.1039/c7ra00140a

IMR OpenIR

	Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe
	Tang, Guodong 1; Wen, Qiang 1; Yang, Teng 2; Cao, Yang 1; Wei, Wei 1; Wang, Zhihe 3; Zhang, Zhidong 2; Li, Yusheng 1
通讯作者	Tang, Guodong(tangguodong@njust.edu.cn) ; Yang, Teng() ; Wang, Zhihe(zhwang@nju.edu.cn)
	2017
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	7 期号:14 页码:8258-8263
摘要	We report a high ZT value of 1.3 at 850 K for undoped polycrystalline SnSe. The high thermoelectric performance is attributed to a synergistic combination of enhanced power factor and reduction of the lattice thermal conductivity. The presence of rock-salt cubic phase SnSe was identified by X-ray diffraction, transmission electron backscatter diffraction and selected area electron diffraction, which significantly contributes to the enhancement of electrical conductivity and power factor of orthorhombic SnSe material. This new material features a microstructural hierarchy of nanoprecipitates coupled with mesoscale microstructures which leads to a significant reduction of lattice thermal conductivity. As a result, a vast increase in ZT from 0.5 to 1.3 at 850 K was achieved. Our work sheds light on a new mechanism to enhance the thermoelectric properties of SnSe materials.
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Major Program of Aerospace Advanced Manufacturing Technology Research Foundation NSFC ; CASC, China ; NSFC
DOI	10.1039/c7ra00140a
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11204134] ; Natural Science Foundation of Jiangsu Province[BK20161495] ; Major Program of Aerospace Advanced Manufacturing Technology Research Foundation NSFC ; CASC, China[U1537204] ; NSFC[51331006]
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000393758700021
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：46[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/123778
专题	中国科学院金属研究所
通讯作者	Tang, Guodong; Yang, Teng; Wang, Zhihe
作者单位	1.Nanjing Univ Sci & Technol, Dept Mat Sci & Engn, Nanjing 210094, Jiangsu, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Nanjing Univ, Dept Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Tang, Guodong,Wen, Qiang,Yang, Teng,et al. Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe[J]. RSC ADVANCES,2017,7(14):8258-8263.
APA	Tang, Guodong.,Wen, Qiang.,Yang, Teng.,Cao, Yang.,Wei, Wei.,...&Li, Yusheng.(2017).Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe.RSC ADVANCES,7(14),8258-8263.
MLA	Tang, Guodong,et al."Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe".RSC ADVANCES 7.14(2017):8258-8263.