The data presented in this article are related to the research article entitled: "Solder free joining as a highly effective method for making contact between thermoelectric materials and metallic electrodes" (Malik et al., 2017) [1]. This article presents microstructure obtained by scanning electron microscopy (SEM) and chemical analysis by energy dispersive X-ray spectroscopy (EDX) point measurements of the thermoelectric ZnSb legs after joining to metallic electrodes using solder (Zn-2Al) and free-soldering methods.
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http://dx.doi.org/10.1016/j.dib.2017.09.023 | DOI Listing |
Nat Commun
March 2024
Key Laboratory of Artificial Structures and Quantum Control, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.
While phonon anharmonicity affects lattice thermal conductivity intrinsically and is difficult to be modified, controllable lattice defects routinely function only by scattering phonons extrinsically. Here, through a comprehensive study of crystal structure and lattice dynamics of Zintl-type Sr(Cu,Ag,Zn)Sb thermoelectric compounds using neutron scattering techniques and theoretical simulations, we show that the role of vacancies in suppressing lattice thermal conductivity could extend beyond defect scattering. The vacancies in SrZnSb significantly enhance lattice anharmonicity, causing a giant softening and broadening of the entire phonon spectrum and, together with defect scattering, leading to a ~ 86% decrease in the maximum lattice thermal conductivity compared to SrCuSb.
View Article and Find Full Text PDFACS Appl Energy Mater
October 2023
Department of Chemistry, University of California, One Shields Ave, Davis, California 95616, United States.
YbZnSb is one of the newest additions to the high-performance YbMSb (M = Mn, Mg, and Zn) family of p-type high-temperature thermoelectric materials and shows promise for forming passivating oxide coatings. Work on the oxidation of rare earth (RE)-substituted YbREMnSb single crystals suggested that substituting late RE elements may form more stable passivation oxide coatings. YbLuZnSb ( = 0.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2023
Functional Nanomaterials & Devices Lab, School of Electrical & Electronics Engineering, SASTRA Deemed to be University, Thanjavur 613 401, India.
MgSb-based Zintl compounds have garnered recent attention as promising materials for thermoelectric applications due to their low thermal conductivity and high values as n-type materials. However, the values of -type materials are lower compared to their -type counterparts. Through a straightforward process involving cold pressing and evacuating-and-encapsulating sintering, we have successfully synthesized a variety of -type MgZnSb/Sb composites by adding the ZnSb-4%Sb composite into the MgSb host material.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
July 2023
Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, USA.
AMX compounds with the ZrBeSi structure tolerate a vacancy concentration of up to 50 % on the M-site in the planar MX-layers. Here, we investigate the impact of vacancies on the thermal and electronic properties across the full EuCu Zn Sb solid solution. The transition from a fully-occupied honeycomb layer (EuCuSb) to one with a quarter of the atoms missing (EuZn Sb) leads to non-linear bond expansion in the honeycomb layer, increasing atomic displacement parameters on the M and Sb-sites, and significant lattice softening.
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