Pinhole-Free Inkjet Printing Strategies for Organic Electronics
Heinrichsdobler A, Roigk JC, Schirmeier F, Brabec C, Wehlus T (2017)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2017
Journal
Publisher: Wiley-Blackwell
Book Volume: 2
Article Number: 1700166
Journal Issue: 12
Abstract
Inkjet printing is a widely used technique in the field of printed electronics.
Yet its reliability is limited because absent droplets induced by defective,
e.g., clogged, nozzles can lead to pinholes in the printed layers causing a
reduction of the quality of printed films or a breakdown of the functionality
in microelectronic devices. Therefore, pinholes in inkjet-printed layers need
to be avoided. In this study the origins for pinholes in inkjet-printed films are
examined. It is found that single missing droplets cannot lead to pinholes but
certain formations can. This paper presents the corresponding responsible
combinations of defective nozzles necessary to create a pinhole. To enable
a statistical approach the pinhole occurrence probabilities are computed
depending on the number of broken nozzles as well as quality factors and
step sizes with a Monte Carlo simulation. The model shows that by choosing
the right print strategy the pinhole probability can be reduced by three orders
of magnitude. Finally, a novel print strategy is suggested, which is not yet
supported by default printer settings but can reduce the pinhole probability
even further by a factor of over 2000 in total. This represents the smallest
pinhole occurrence probability ever achieved.
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Germany (DE)How to cite
APA:
Heinrichsdobler, A., Roigk, J.C., Schirmeier, F., Brabec, C., & Wehlus, T. (2017). Pinhole-Free Inkjet Printing Strategies for Organic Electronics. Advanced Materials Technologies, 2(12). https://doi.org/10.1002/admt.201700166
MLA:
Heinrichsdobler, Armin, et al. "Pinhole-Free Inkjet Printing Strategies for Organic Electronics." Advanced Materials Technologies 2.12 (2017).
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