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Title
Screen-Printed, Pure Carbon-Black Thermocouple Fabrication and Seebeck Coefficients
AuthorOffenzeller, Christina ; Knoll, Marcel ; Jakoby, Bernhard ; Hilber, Wolfgang
Published in
Sensors, 2019, Vol. 19, Issue 2, page 403
PublishedMDPI, 2019
LanguageEnglish
Document typeJournal Article
Keywords (EN)carbon black / thermocouple / screen-printed / Seebeck coefficient
ISSN1424-8220
URNurn:nbn:at:at-ubl:3-1553 Persistent Identifier (URN)
DOI10.3390/s19020403 
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 The work is publicly available
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Screen-Printed, Pure Carbon-Black Thermocouple Fabrication and Seebeck Coefficients [2.9 mb]
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Abstract (English)

Thermocouples classically consist of two metals or semiconductor components that are joined at one end, where temperature is measured. Carbon black is a low-cost semiconductor with a Seebeck coefficient that depends on the structure of the carbon particles. Different carbon black screen-printing inks generally exhibit different Seebeck coefficients, and two can therefore be combined to realize a thermocouple. In this work, we used a set of four different commercially available carbon-black screen-printing inks to print all-carbon-black thermocouples. The outputs of these thermocouples were characterized and their Seebeck coefficients determined. We found that the outputs of pure carbon-black thermocouples are reasonably stable, linear, and quantitatively comparable to those of commercially available R- or S-type thermocouples. It is thus possible to fabricate thermocouples by an easily scalable, cost-efficient process that combines two low-cost materials.

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CC-BY-License (4.0)Creative Commons Attribution 4.0 International License