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Screen printing into cavities of a thick insulating layer as a part of a fully printed thermoelectric generator
Stuttgart Media University – Hochschule der Medien (HdM), Stuttgart, Germany.
Stuttgart Media University – Hochschule der Medien (HdM), Stuttgart, Germany.
Stuttgart Media University – Hochschule der Medien (HdM), Stuttgart, Germany.
2011 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Thermoelectric generators (TEG) convert thermal energy into electricity, directly [1]. 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 [2]. 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
2011.
Keyword [en]
Seebeck effect, thermoelectric generator, waste energy harvesting, screen printing
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-106004OAI: oai:DiVA.org:liu-106004DiVA: diva2:712764
Conference
The 43rd annual conference of the International Circle of Educational Institutes for Graphic Arts, Technology and Management, September 19-23, Norrköping, Sweden
Available from: 2014-04-16 Created: 2014-04-16 Last updated: 2014-04-16Bibliographically approved
In thesis
1. Screen Printed Thermoelectric Devices
Open this publication in new window or tab >>Screen Printed Thermoelectric Devices
2014 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Thermoelectric generators (TEG) directly convert heat energy into electrical energy. The impediments as to why this technology has not yet found extensive application are the low conversion efficiency and high costs per watt. On the one hand, the manufacturing process is a cost factor. On the other, the high-­‐priced thermoelectric (TE) materials have an enormous impact on the costs per watt. In this thesis both factors will be examined: the production process and the selection of TE materials. Technical screen printing is a possible way of production, because this method is very versatile with respect to the usable materials, substrates as well as printing inks. The organic conductor PEDOT:PSS offers reasonable thermoelectric properties and can be processed very well in screen printing. It was demonstrated by prototypes of fully printed TEGs that so-­‐called vertical printed TEGs are feasible using standard graphic arts industry processes. In addition, the problems that occur with print production of TEGs are identified. Finally, approaches to solve these problems are discussed.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2014. 45 p.
Series
Linköping Studies in Science and Technology. Thesis, ISSN 0280-7971 ; 1663
Keyword
Screen printing, thermoelectric generator, Seebeck effect, energy harvesting
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-106006 (URN)10.3384/lic.diva-106006 (DOI)978-­91-­7519-­323-­6 (print) (ISBN)
Presentation
K3, Kåkenhus, Campus Norrköping, Linköpings universitet, Norrköping (English)
Opponent
Supervisors
Available from: 2014-04-16 Created: 2014-04-16 Last updated: 2014-04-16Bibliographically approved

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf