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Open AccessArticle

Deposition of High Conductivity Low Silver Content Materials by Screen Printing

College of Engineering, Swansea University, Swansea SA2 8PP, UK
Author to whom correspondence should be addressed.
Academic Editor: Alessandro Lavacchi
Coatings 2015, 5(2), 172-185;
Received: 8 February 2015 / Revised: 24 April 2015 / Accepted: 29 April 2015 / Published: 12 May 2015
(This article belongs to the Special Issue Trends in Coatings and Surface Technology—Feature Papers)
A comprehensive experimental investigation has been carried out into the role of film thickness variation and silver material formulation on printing capability in the screen printing process. A full factorial experiment was carried out where two formulations of silver materials were printed through a range of screens to a polyester substrate under a set of standard conditions. The materials represented a novel low silver content (45%–49%) polymer material and traditional high silver content (65%–69%) paste. The resultant prints were characterised topologically and electrically. The study shows that more cost effective use of the silver in the ink was obtained with the low silver polymer materials, but that the electrical performance was more strongly affected by the mesh being used (and hence film thickness). Thus, while optimum silver use could be obtained using materials with a lower silver content, this came with the consequence of reduced process robustness. View Full-Text
Keywords: printed silver; screen printing; mesh ruling; ink formulation printed silver; screen printing; mesh ruling; ink formulation
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Jewell, E.; Hamblyn, S.; Claypole, T.; Gethin, D. Deposition of High Conductivity Low Silver Content Materials by Screen Printing. Coatings 2015, 5, 172-185.

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