AI Article Synopsis
- High-conductivity tellurium-based glasses are promising for various applications due to their unique properties and potential in thermoelectric materials.
- Researchers successfully created a high-density Sn[(GaTe)(SnTe)] bulk glass using spark plasma sintering, achieving a density of 5.5917 g/cm³.
- The glass demonstrated a significant decrease in thermal conductivity and an increase in the Seebeck coefficient, indicating improved thermoelectric performance compared to traditional tellurium-based glasses, making it an attractive candidate for further study.
Article Abstract
High-conductivity tellurium-based glasses were anticipated to be the attractive candidates in chalcogenide glass systems on account of their distinctive characteristics and extensive application prospects. In this paper, the high-density (>96%) Sn[(GaTe)(SnTe)] bulk glass with the density of 5.5917 g/cm was successfully prepared by spark plasma sintering (SPS) technology at 460 K, using a 5 min dwell time and 450 MPa pressure. The room-temperature thermal conductivity of Sn8 bulk materials significantly decreased from 1.476 W m∙K in the crystalline sample to 0.179 W m∙K in the glass, and the Seebeck coefficient obviously increased from 35 μV∙K in to 286 μV∙K, indicating that the glass transition of tellurium-based semiconductors could optimize the thermal conductivity and Seebeck coefficient of the materials. Compared to the conventional tellurium-based glassy systems, the fabricated Sn8 bulk glass presented a high room-temperature conductivity ( 6.2 S∙m) and a large glass transition temperature ( 488 K), which was expected to be a promising thermoelectric material.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11478014 | PMC |
| http://dx.doi.org/10.3390/ma17194809 | DOI Listing |
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