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Crystal Structure and Thermoelectric Properties of Cu2Fe1-xMnxSnSe4 Diamond-like Chalcogenides
Song, QF; Qiu, PF; Zhao, KP; Deng, TT; Shi, X; Chen, LD
2020-03-23
Source PublicationACS APPLIED ENERGY MATERIALS
ISSN2574-0962
Issue3Pages:2137
SubtypeArticle
AbstractQuaternary diamond-like chalcogenides have attracted great attention for thermoelectric application in the past decade. The electrical and thermal transport properties of quaternary diamond-like chalcogenides are sensitively related with their crystal structures. In this work, a series of Cu2Fe1-xMnxSnSe4 solid solutions has been synthesized, and the relation between crystal structure and thermoelectric properties were investigated. Significantly varied carrier concentration, mobility, effective mass, and lattice thermal conductivity were observed with increasing Mn-alloying content in Cu2Fe1-xMnxSnSe4, which were attributed to the modifications of the crystal structure, such as the enlarged lattice parameters, increased Cu-Se bond length, and strengthened internal structure distortion. On the basis of the deep understanding of these Cu2Fe1-xMnxSnSe4 solid solutions, we further doped Cu in Cu2Fe0.5Mn0.5SnSe4 to tune the carrier concentration. A peak dimensionless figure-of-merit of 0.6 was achieved for Cu-2.1(Fe0.5Mn0.5)(0.9)SnSe4 at 800 K, about 71% and 33% higher than those for Cu2FeSnSe4 and Cu2MnSnSe4, respectively.
DOI10.1021/acsaem.9b02150
WOS KeywordRAY-POWDER DIFFRACTION ; PERFORMANCE ; COMPOUND ; CUGATE2 ; SCATTERING ; ENERGY
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28214
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Song, QF,Qiu, PF,Zhao, KP,et al. Crystal Structure and Thermoelectric Properties of Cu2Fe1-xMnxSnSe4 Diamond-like Chalcogenides[J]. ACS APPLIED ENERGY MATERIALS,2020(3):2137.
APA Song, QF,Qiu, PF,Zhao, KP,Deng, TT,Shi, X,&Chen, LD.(2020).Crystal Structure and Thermoelectric Properties of Cu2Fe1-xMnxSnSe4 Diamond-like Chalcogenides.ACS APPLIED ENERGY MATERIALS(3),2137.
MLA Song, QF,et al."Crystal Structure and Thermoelectric Properties of Cu2Fe1-xMnxSnSe4 Diamond-like Chalcogenides".ACS APPLIED ENERGY MATERIALS .3(2020):2137.
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