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Shape-Versatile 3D Thermoelectric Generators by Additive Manufacturing

Mallick, Md Mofasser; Franke, Leonard; Rösch, Andres Georg; Lemmer, Uli

Abstract (englisch):
Additive manufacturing (AM) is a recent growing technology, which is currently implemented for different application fields, from rapid prototyping to cost-effective manufacturing of industrial components with complex shapes. Printable thermoelectric materials offer synergies with AM and can be integrated into 3D printed thermoelectric generators (TEGs). In this work, we have formulated an Ag2Se-based n-type printable thermoelectric (TE) ink with a high figure-of-merit of ∼1 at room temperature. Three scaffolds with different shapes have been printed using 3D printing. The developed ink as n-type legs and commercially available PEDOT as p-type legs were then painted on the 3D printed scaffolds to fabricate three TEGs with a different number of legs and shapes. The performance of the TEGs was studied for different temperature differences between ΔT = 10 and 70 K. Power output (Pmax) levels of several microwatts and output voltages of several millivolts can be easily achieved.

DOI: 10.1021/acsenergylett.0c02159
Zugehörige Institution(en) am KIT Lichttechnisches Institut (LTI)
Institut für Mikrostrukturtechnik (IMT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2380-8195, 2380-8195
KITopen-ID: 1000127552
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in ACS energy letters
Verlag American Chemical Society (ACS)
Band 6
Seiten 85–91
Projektinformation 3DMM2O (ZEISS-STFG, 43125 (intern))
EXC 2082; 3DMM2O (DFG, DFG EXSTRAT, EXC 2082/1_I)
Vorab online veröffentlicht am 08.12.2020
Schlagwörter 3D printing, thermoelectric generators, additive manufacturing
Nachgewiesen in Scopus
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