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Rock-salt-type nanoprecipitates lead to high thermoelectric performance in undoped polycrystalline SnSe
Tang, Guodong1; Wen, Qiang1; Yang, Teng2; Cao, Yang1; Wei, Wei1; Wang, Zhihe3; Zhang, Zhidong2; Li, Yusheng1
Corresponding AuthorTang, Guodong(tangguodong@njust.edu.cn) ; Yang, Teng() ; Wang, Zhihe(zhwang@nju.edu.cn)
2017
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume7Issue:14Pages:8258-8263
AbstractWe 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.
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Major Program of Aerospace Advanced Manufacturing Technology Research Foundation NSFC ; CASC, China ; NSFC
DOI10.1039/c7ra00140a
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000393758700021
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/123778
Collection中国科学院金属研究所
Corresponding AuthorTang, Guodong; Yang, Teng; Wang, Zhihe
Affiliation1.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
Recommended Citation
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.
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