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Rapid Printing of Pseudo-3D Printed SnSe Thermoelectric Generators Utilizing an Inorganic Binder
ACS Applied Materials & Interfaces, Volume: 15, Issue: 19, Pages: 23068 - 23076
Swansea University Authors: Geraint Howells, Shahin Mehraban, James McGettrick , Nicholas Lavery , Matt Carnie , Matthew Burton
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DOI (Published version): 10.1021/acsami.3c01209
There has been much interest in tin selenide (SnSe) in the thermoelectric community since the discovery of the record zT in the material in 2014. Manufacturing techniques used to produce SnSe are largely energy-intensive (e.g., spark plasma sintering); however, recently, in previous work, SnSe has b...
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American Chemical Society (ACS)
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There has been much interest in tin selenide (SnSe) in the thermoelectric community since the discovery of the record zT in the material in 2014. Manufacturing techniques used to produce SnSe are largely energy-intensive (e.g., spark plasma sintering); however, recently, in previous work, SnSe has been shown to be produced via a low embodied energy printing technique, resulting in 3D samples with high zT values (up to 1.7). Due to the additive manufacturing technique, the manufacturing time required was substantial. In this work, 3D samples were printed using the inorganic binder sodium metasilicate and reusable molds. This facilitated a single-step printing process that substantially reduced the manufacturing time. The printed samples were thermally stable through multiple thermal cycles, and a peak zT of 0.751 at 823 K was observed with the optimum binder concentration. A proof-of-concept thermoelectric generator produced the highest power output of any reported printed Se-based TEG to date.
thermoelectrics, tin selenide, SnSe, printing, 3D
Faculty of Science and Engineering
M.R.B. and M.J.C. would like to thank the EPSRC (EP/ N020863/1 − SPECIFIC-IKC) and the European Regional Development Fund (c80892) through the Welsh Government for funding. M.R.B. would also like to thank EPSRC (EP/ S018107/1 - SUSTAIN). G.H. would like to acknowledge the M2A funding from the European Social Fund via the Welsh Government (c80816), EPSRC (EP/L015099/1), and Tata
Steel. S.M. and N.L. wish to thank the Welsh Government, ERDF, and SMARTExpertise Wales for funding MACH1 and COMET. All authors acknowledge the SU AIM Facility via the Welsh Government European Regional Development Fund (80708) and EPSRC (EP/M028267/1) for microscopy and imaging