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Cement‐SnSe Thermoelectric Devices With High Seebeck Coefficients
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Nicholas Lavery ,
Matt Carnie ,
Matthew Burton
Advanced Electronic Materials, Volume: 12, Issue: 2, Start page: e00649
Swansea University Authors:
GERAINT HOWELLS, Shahin Mehraban, Tom Dunlop , Nicholas Lavery , Matt Carnie
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DOI (Published version): 10.1002/aelm.202500649
Abstract
In this work, we present a cost‐effective, scalable approach for fabricating thermoelectric (TE) generators using p‐type tin selenide (SnSe) bonded in a cement matrix via a slurry mold casting technique. Traditional methods for manufacturing SnSe‐based TE materials are energy‐intensive and economica...
| Published in: | Advanced Electronic Materials |
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| ISSN: | 2199-160X |
| Published: |
2026
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa71313 |
| Abstract: |
In this work, we present a cost‐effective, scalable approach for fabricating thermoelectric (TE) generators using p‐type tin selenide (SnSe) bonded in a cement matrix via a slurry mold casting technique. Traditional methods for manufacturing SnSe‐based TE materials are energy‐intensive and economically unfeasible. By contrast, our approach employs common Portland cement as a binder, offering a viable alternative that reduces processing time, complexity, and cost. Ball‐milled SnSe is mixed with varying concentrations of cement and cast into molds for samples, resulting in dimensions of 1.5 × 1.5 × 0.75 cm3. The best‐performing formulations are 0.2 wt.% cement, which exhibited a power factor of 77 µW m−1·K−2 at 800 K and the 0.3 wt.% cement sample, which has a peak ZT of 0.3 at 850 K, the highest ZT of any cement containing TE to date. A proof‐of‐concept thermoelectric generator (TEG) comprising six legs of SnSe‐cement composite demonstrated a peak power output of ∼73 µW at 850 K. Furthermore, calculations show that using the cement‐bonded SnSe to harvest industrial waste heat in a steel‐making environment can yield a potential 1521.3 W m−2 of electrical energy. |
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| Keywords: |
cement; SnSe; thermoelectrics; tin selenide |
| College: |
Faculty of Science and Engineering |
| Funders: |
European Regional Development Fund Grant: c80892;
Engineering and Physical Sciences Research Council Grant: EP/N020863/1, EP/S018107/1, EP/L015099/1, EP/M028267/1 |
| Issue: |
2 |
| Start Page: |
e00649 |