SIC OpenIR
Mg-3(Bi,Sb)(2)single crystals towards high thermoelectric performance
Pan, Y; Yao, MY; Hong, XC; Zhu, YF; Fan, FR; Imasato, K; He, YK; Hess, C; Fink, J; Yang, J; Buchner, B; Fu, CG; Snyder, GJ; Felser, C
2020-06-01
Source PublicationENERGY & ENVIRONMENTAL SCIENCE
ISSN1754-5692
Issue6Pages:1717
SubtypeArticle
AbstractThe rapid growth of the thermoelectric cooler market makes the development of novel room temperature thermoelectric materials of great importance. Ternary n-type Mg-3(Bi,Sb)(2)alloys are promising alternatives to the state-of-the-art Bi-2(Te,Se)(3)alloys but grain boundary resistance is the most important limitation. n-type Mg-3(Bi,Sb)(2)single crystals with negligible grain boundaries are expected to have particularly highzTbut have rarely been realized due to the demanding Mg-rich growth conditions required. Here, we report, for the first time, the thermoelectric properties of n-type Mg-3(Bi,Sb)(2)alloyed single crystals grown by a one-step Mg-flux method using sealed tantalum tubes. High weighted mobility similar to 140 cm(2)V(-1)s(-1)and a highzTof 0.82 at 315 K are achieved in Y-doped Mg(3)Bi(1.25)Sb(0.75)single crystals. Through both experimental angle-resolved photoemission spectroscopy and theoretical calculations, we denote the origin of the high thermoelectric performance from a point of view of band widening effect and electronegativity, as well as the necessity to form high Bi/Sb ratio ternary Mg-3(Bi,Sb)(2)alloys. The present work paves the way for further development of Mg-3(Bi,Sb)(2)for near room temperature thermoelectric applications.
DOI10.1039/d0ee00838a
WOS KeywordCARRIER SCATTERING MECHANISM ; THERMAL-CONDUCTIVITY ; ZINTL COMPOUNDS ; TRANSPORT ; SB
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28006
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Pan, Y,Yao, MY,Hong, XC,et al. Mg-3(Bi,Sb)(2)single crystals towards high thermoelectric performance[J]. ENERGY & ENVIRONMENTAL SCIENCE,2020(6):1717.
APA Pan, Y.,Yao, MY.,Hong, XC.,Zhu, YF.,Fan, FR.,...&Felser, C.(2020).Mg-3(Bi,Sb)(2)single crystals towards high thermoelectric performance.ENERGY & ENVIRONMENTAL SCIENCE(6),1717.
MLA Pan, Y,et al."Mg-3(Bi,Sb)(2)single crystals towards high thermoelectric performance".ENERGY & ENVIRONMENTAL SCIENCE .6(2020):1717.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Pan, Y]'s Articles
[Yao, MY]'s Articles
[Hong, XC]'s Articles
Baidu academic
Similar articles in Baidu academic
[Pan, Y]'s Articles
[Yao, MY]'s Articles
[Hong, XC]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Pan, Y]'s Articles
[Yao, MY]'s Articles
[Hong, XC]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.