SIC OpenIR
Electrical and Thermal Transport Properties of n-type Bi6Cu2Se4O6 (2BiCuSeO+2Bi(2)O(2)Se)
Zhang, Xiaoxuan; Qiu, Yuting; Ren, Dudi; Zhao, Li-Doug
2019-12-31
Source PublicationANNALEN DER PHYSIK
ISSN0003-3804
SubtypeArticle; Early Access
AbstractNew thermoelectric materials, n-type Bi6Cu2Se4O6 oxyselenides, composed of well-known BiCuSeO and Bi2O2Se oxyselenides, are synthesized with a simple solid-state reaction. Electrical transport properties, microstructures, and elastic properties are investigated with an emphasis on thermal transport properties. Similar to Bi2O2Se, it is found that the halogen-doped Bi6Cu2Se4O6 possesses n-type conducting transports, which can be improved via Br/Cl doping. Compared with BiCuSeO and Bi2O2Se, an extremely low thermal conductivity can be observed in Bi6Cu2Se4O6. To reveal the origin of low thermal conductivity, elastic properties, sound velocity, Gruneisen parameter, and Debye temperature are evaluated. Importantly, the calculated phonon mean free path of Bi6Cu2Se4O6 is comparable to the interlayer distance for BiOCuSe and BiOSe layers, which is ascribed to the strong interlayer phonon scattering. Contributing from the outstanding low thermal conductivity and improved electrical transport properties, the maximum ZT approximate to 0.15 at 823 K and approximate to 0.11 at 873K are realized in n-type Bi6Cu2Se3.2Br0.8O6 and Bi6Cu2Se3.6Cl0.4O6, respectively, indicating the promising thermoelectric performance in n-type Bi6Cu2Se4O6 oxyselenides.
KeywordBi6Cu2Se4O6 interlayer phonon scattering thermal conductivity thermoelectric oxyselenides
DOI10.1002/andp.201900340
WOS KeywordTHERMOELECTRIC PERFORMANCE ; BICUSEO ; CONDUCTIVITY ; FIGURE
Language英语
WOS Research AreaPhysics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27527
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Zhang, Xiaoxuan,Qiu, Yuting,Ren, Dudi,et al. Electrical and Thermal Transport Properties of n-type Bi6Cu2Se4O6 (2BiCuSeO+2Bi(2)O(2)Se)[J]. ANNALEN DER PHYSIK,2019.
APA Zhang, Xiaoxuan,Qiu, Yuting,Ren, Dudi,&Zhao, Li-Doug.(2019).Electrical and Thermal Transport Properties of n-type Bi6Cu2Se4O6 (2BiCuSeO+2Bi(2)O(2)Se).ANNALEN DER PHYSIK.
MLA Zhang, Xiaoxuan,et al."Electrical and Thermal Transport Properties of n-type Bi6Cu2Se4O6 (2BiCuSeO+2Bi(2)O(2)Se)".ANNALEN DER PHYSIK (2019).
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
[Zhang, Xiaoxuan]'s Articles
[Qiu, Yuting]'s Articles
[Ren, Dudi]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, Xiaoxuan]'s Articles
[Qiu, Yuting]'s Articles
[Ren, Dudi]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, Xiaoxuan]'s Articles
[Qiu, Yuting]'s Articles
[Ren, Dudi]'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.