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Proceedings Paper

Gravure printing of transparent conducting ITO coatings for display applications
Author(s): Joerg Puetz; Sabine Heusing; Marcos de Haro Moro; C. Mikael Ahlstedt; Michel A. Aegerter D.D.S.
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Paper Abstract

Transparent conducting coatings and patterns of ITO (indium tin oxide) were deposited by a direct gravure printing on PET foils using nanoparticle-based UV-curable inks. Solid areas with thicknesses ranging between 300 and >1000 nm were obtained by varying the ink composition (e.g. ITO content, solvents) and fundamental parameters of the printing plate such as the line density. The best ITO coating patterns showed a sheet resistance of 3 to 10 kΩ and a transmission of up to 88 % with a haze of less than 1 %. One of the most crucial steps during film formation is the drying of the wet film as it changes the rheology and polarity of the ink and in consequence decisively influences the film formation. Typical fields of application of the gravure-printed ITO patterned electrodes include smart windows, flexible displays and printed electronics.

Paper Details

Date Published: 5 October 2005
PDF: 8 pages
Proc. SPIE 5963, Advances in Optical Thin Films II, 59631E (5 October 2005); doi: 10.1117/12.625208
Show Author Affiliations
Joerg Puetz, Leibniz-Institut für Neue Materialien (Germany)
Sabine Heusing, Leibniz-Institut für Neue Materialien (Germany)
Marcos de Haro Moro, Leibniz-Institut für Neue Materialien (Germany)
C. Mikael Ahlstedt, Leibniz-Institut für Neue Materialien (Germany)
Michel A. Aegerter D.D.S., Leibniz-Institut für Neue Materialien (Germany)

Published in SPIE Proceedings Vol. 5963:
Advances in Optical Thin Films II
Claude Amra; Norbert Kaiser; H. Angus Macleod, Editor(s)

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