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Thermoelectric Properties of (Ag2Se)(1-x)(Bi2Se3)(x)
Liu Hong-Xia; Li Wen; Zhang Xin-Yue; Li Juan; Pei Yan-Zhong
2019-03-20
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:3Pages:341
SubtypeArticle
AbstractTernary chalcogenides I-V-VI2 compounds attract extensive attentions for thermoelectric applications due to their intrinsically low lattice thermal conductivity. AgBiSe2, as one of a few n-type semiconductors among these compounds, shows the potential to be a promising thermoelectric material. Therefore, this work focuses on its thermoelectric properties. According to the phase diagram of Ag2Se-Bi2Se3 system, the single phase region of (Ag2Se)(1-x)(Bi2Se3)(x) allows x to be varied in the range of 0.4 similar to 0.62. This large variation of x suggests a tunability of carrier concentration for this material. A broad carrier concentration of 1.0x10(19)similar to 5.7x10(19) cm(-3) for single phased (Ag2Se)(1-x)(Bi2Se3)(x) is obtained through a composition manipulation, which enables a comprehensive assessment on electronic transport properties based on a single parabolic band model with acoustic scattering. The highest carrier concentration obtained in this work, approaching to the theoretical optimal one, leads to a peak ZT of 0.5 at 700 K. This work offers a well understanding of its transport properties and underlying physical parameters determining the thermoelectric performance.
Keywordthermoelectric material thermoelectric properties AgBiSe2 carrier concentration SPB model
DOI10.15541/jim20180249
Language英语
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27267
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Liu Hong-Xia,Li Wen,Zhang Xin-Yue,et al. Thermoelectric Properties of (Ag2Se)(1-x)(Bi2Se3)(x)[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(3):341.
APA Liu Hong-Xia,Li Wen,Zhang Xin-Yue,Li Juan,&Pei Yan-Zhong.(2019).Thermoelectric Properties of (Ag2Se)(1-x)(Bi2Se3)(x).JOURNAL OF INORGANIC MATERIALS,34(3),341.
MLA Liu Hong-Xia,et al."Thermoelectric Properties of (Ag2Se)(1-x)(Bi2Se3)(x)".JOURNAL OF INORGANIC MATERIALS 34.3(2019):341.
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