MgAgSb thermoelectric composite and the effect of doping species

In this study, we present the fabrication and thermoelectric properties of MgAgSb composites. The fabrication process was based on the concept of nanoparticle engineering. Mg 3 Sb 2 and Ag 3 Sb nanopowders were first synthesized and subsequently used for MgAgSb formation. The effects of Mg 2 Cu, Mg...

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Bibliographic Details
Published in:MRS communications 2023-12, Vol.13 (6), p.1226-1231
Main Authors: Hsin, Cheng-Lun, Wang, Po-Wei, Yang, Tzu-Kuan, Yu, Po-Cheng
Format: Article
Language:English
Subjects:
Biomaterials
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Engineering
Materials Science
Nanotechnology
Polymer Sciences
Research Letter
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Summary:In this study, we present the fabrication and thermoelectric properties of MgAgSb composites. The fabrication process was based on the concept of nanoparticle engineering. Mg 3 Sb 2 and Ag 3 Sb nanopowders were first synthesized and subsequently used for MgAgSb formation. The effects of Mg 2 Cu, Mg 2 Ni, and Mg 2 Sn as doping species on thermoelectric properties were studied. Compared with the intrinsic MgAgSb, the electrical conductivity was improved by the Ni and Sn dopants. In contrast, the Cu dopant causes MgAgSb to have a lower ZT. Our experimental results proved that the nanoparticle engineering process can be used for the fabrication of MgAgSb-based thermoelectric composites. Graphical abstract
ISSN:2159-6867
2159-6867
DOI:10.1557/s43579-023-00434-2