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Synergistically improving thermoelectric and mechanical properties of Ge0.94Bi0.06Te through dispersing nano-SiC
Jin, Y; Zhang, XX; Xiao, Y; He, WK; Wang, DY; Li, J; Zheng, SQ; Ren, DD; Qiu, YT; Zhao, LD
2020-07-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Pages22
SubtypeArticle
AbstractIn this paper, Ge0.94Bi0.06Te was firstly fabricated by mechanical alloying. Compared with the Ge0.94Bi0.06Te sample prepared by the melting process, the maximum ZT achieved an improvement from 1.4 to 1.8. The thermoelectric performance of Ge0.94Bi0.06Te can be improved through suppressing Ge vacancies and refining grains via mechanical alloying. Further introducing nano-SiC into the matrix of Ge0.94Bi0.06Te improves thermoelectric performance by increasing Seebeck coefficient and reducing thermal conductivity. Meanwhile, the mechanical properties including the microhardness and Young's modulus are also enhanced by dispersing nano-SiC. Consequently, a maximum ZT similar to 2.1 at 723 K was achieved in GeTe-based materials. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
DOI10.1016/j.scriptamat.2020.03.018
WOS KeywordULTRALOW THERMAL-CONDUCTIVITY ; BAND CONVERGENCE ; POWER-FACTOR ; PERFORMANCE ; GETE ; ENHANCEMENT ; TEMPERATURE ; SCATTERING ; DISTORTION ; REDUCTION
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27945
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Jin, Y,Zhang, XX,Xiao, Y,et al. Synergistically improving thermoelectric and mechanical properties of Ge0.94Bi0.06Te through dispersing nano-SiC[J]. SCRIPTA MATERIALIA,2020:22.
APA Jin, Y.,Zhang, XX.,Xiao, Y.,He, WK.,Wang, DY.,...&Zhao, LD.(2020).Synergistically improving thermoelectric and mechanical properties of Ge0.94Bi0.06Te through dispersing nano-SiC.SCRIPTA MATERIALIA,22.
MLA Jin, Y,et al."Synergistically improving thermoelectric and mechanical properties of Ge0.94Bi0.06Te through dispersing nano-SiC".SCRIPTA MATERIALIA (2020):22.
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