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Inkjet Printing of Functional Materials on Selectively Plasma Treated Surfaces

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Inkjet Printing of Functional Materials on Selectively Plasma Treated Surfaces

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Samenvatting

In manufacturing of organic electronics, inkjet printing as
an alternative technique for depositing materials is
becoming increasingly important. Aside to the ink
formulations challenges, improving the resolution of the
printed patterns is a major goal. In this study we will
discuss a newly developed technique to selectively modify
the substrate surface energy using plasma treatment as a
means to achieve this goal. First, we look at the effects of
the μPlasma treatment on the surface energy for a
selection of plastic films. Second, we investigated the
effects of the μPlasma treatment on the wetting behaviour
of inkjet printed droplets to determine the resolution of
the μPlasma printing technique. We found that the surface
energy for all tested films increased significantly reaching
a maximum after 3-5 repetitions. Subsequently the
surface energy decreased in the following 8-10 days after
treatment, finally stabilizing at a surface energy roughly
halfway between the surface energy of the untreated film
and the maximum obtained surface energy. When μPlasma
printing lines, an improved wetting abillity of inkjet
printed materials on the plasma treated areas was found.
The minimal achieved μPlasma printed line was found to
be 1 mm wide. For future application it is important to
increase the resolution of the plasma print process. This is
crucial for combining plasma treatment with inkjet print
technology as a means to obtain higher print resolutions.

Toon meer
OrganisatieFontys Hogescholen
InstituutFontys Hogeschool Toegepaste Natuurwetenschappen
LectoraatLectoraat Thin films and functional materials
Jaar2011
TypeConferentiebijdrage
ISBN978-3-00-034957-7
TaalEngels

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