Screen printing into cavities of a thick insulating layer as a part of a fully printed thermoelectric generator
2011 (English)Conference paper, Abstract (Refereed)
Thermoelectric generators (TEG) convert thermal energy into electricity, directly . The sophisticated and therefore expensive ways of producing such TEGs presently prevent the technology to enter new markets other than space missions or the combustion systems of cars . A promising approach to reduce the costs per Watt is to print the TEG structures on flexible substrates to be able to affix the flexible TEG directly on the heat source or sink. This report describes the process of assembling a fully printed TEG especially the issues that arise when printing the intermediate insulating layers in a so called vertical layout of a TEG. As the layer thicknesses all are rather thick screen and stencil printing were used. When the cavities in the insulating layer are subsequently filled with the thermoelectric leg materials the electrical contact between the top and the bottom conductors of the TEG are established. However, the cavities must be filled properly to ensure a good electrical contact. For this reason, the flow behaviour of the thermoelectric materials must be optimized for printing.
Place, publisher, year, edition, pages
Seebeck effect, thermoelectric generator, waste energy harvesting, screen printing
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-106004OAI: oai:DiVA.org:liu-106004DiVA: diva2:712764
The 43rd annual conference of the International Circle of Educational Institutes for Graphic Arts, Technology and Management, September 19-23, Norrköping, Sweden