ForschungPublikationen
Ceramic-based thermoelectric generator processed via spray-coating and laser structuring

Ceramic-based thermoelectric generator processed via spray-coating and laser structuring

Kategorien Zeitschriften/Aufsätze (reviewed)
Jahr 2020
Autoren Wolf, M.; Abt, M.; Hoffmann, G.; Overmeyer, L.; Feldhoff, A.
Veröffentlicht in Open Ceramics, Volume 1, May 2020, 100002
Beschreibung

Processing technology to improve the manufacturing of thermoelectric generators (TEGs) is a growing field of research. In this paper, an adaptable and scalable process comprising spray-coating and laser structuring for fast and easy TEG manufacturing is presented. The developed process combines additive and subtractive processing technology towards an adaptable ceramic-based TEG, which is applicable at high temperatures and shows a high optimization potential. As a prototype, a TEG based on Ca3Co4O9 (CCO) and Ag on a ceramic substrate was prepared. Microstructural and thermoelectric characterization is shown, reaching up to 1.65 ​μW ​cm−2 at 673 ​K and a ΔT of 100 ​K. The high controllability of the developed process also enables adaptation for different kinds of thermoelectric materials.

DOI 10.1016/j.oceram.2020.100002