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Fully 3D Printed Tin Selenide (SnSe) Thermoelectric Generators with Alternating n-Type and p-Type Legs
ACS Applied Energy Materials, Volume: 6, Issue: 10, Pages: 5498 - 5507
Swansea University Authors: Geraint Howells, Shahin Mehraban, James McGettrick , Nicholas Lavery , Matt Carnie
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DOI (Published version): 10.1021/acsaem.3c00576
Tin selenide (SnSe) has attracted much attention in the field of thermoelectrics since the discovery of the record figure of merit (zT) of 2.6 ± 0.3. While there have been many publications on p-type SnSe, to manufacture efficient SnSe thermoelectric generators, ann-type is also required. Publicatio...
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American Chemical Society (ACS)
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Tin selenide (SnSe) has attracted much attention in the field of thermoelectrics since the discovery of the record figure of merit (zT) of 2.6 ± 0.3. While there have been many publications on p-type SnSe, to manufacture efficient SnSe thermoelectric generators, ann-type is also required. Publications on n-type SnSe, however, are limited. This paper reports a pseudo-3D-printing technique to fabricate bulk n-type SnSe elements, by utilizing Bi as a dopant. Various Bi doping levels are investigated and characterized over a wide range of temperatures and through multiple thermal cycles. Stable n-type SnSe elements are then combined with printed p-type SnSe elements to fabricate a fully printed alternating n- and p-type thermoelectric generator, which is shown to produce 145 μW at 774 K.
thermoelectrics, printed, tin selenide, thermoelectric generator, TEG, n-type
Faculty of Science and Engineering
EPSRC (EP/N020863/1), European Regional Development Fund
(c80892) through the Welsh Government for funding.
EPSRC (EP/S018107/1), M2A funding from the European Social Fund via Welsh Government (c80816), EPSRC (EP/L015099/1), and Tata steel. Welsh Government, ERDF, and SMART Expertise Wales for funding MACH1 and COMET. ERDF and WEFO for funding of SPARC II. All authors acknowledge the SU AIM Facility (EPSRC EP/M028267/1) for microscopy and imaging.