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Fully 3D Printed Tin Selenide (SnSe) Thermoelectric Generators with Alternating n-Type and p-Type Legs

Matthew Richard Burton Orcid Logo, Geraint Howells, Shahin Mehraban, James McGettrick Orcid Logo, Nicholas Lavery Orcid Logo, Matt Carnie Orcid Logo

ACS Applied Energy Materials, Volume: 6, Issue: 10, Pages: 5498 - 5507

Swansea University Authors: Geraint Howells, Shahin Mehraban, James McGettrick Orcid Logo, Nicholas Lavery Orcid Logo, Matt Carnie Orcid Logo

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DOI (Published version): 10.1021/acsaem.3c00576

Abstract

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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Published in: ACS Applied Energy Materials
ISSN: 2574-0962 2574-0962
Published: American Chemical Society (ACS) 2023
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa63518
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Abstract: 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.
Keywords: thermoelectrics, printed, tin selenide, thermoelectric generator, TEG, n-type
College: Faculty of Science and Engineering
Funders: 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.
Issue: 10
Start Page: 5498
End Page: 5507