Berlin 2024 – scientific programme
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DS: Fachverband Dünne Schichten
DS 8: Thin Film Properties II
DS 8.9: Talk
Wednesday, March 20, 2024, 12:00–12:15, A 060
Design of a polymeric thin film for 2D material printing — •Sebastiaan Haartsen1, Pantelis Bampoulis1, Harold Zandvliet1, Johannes Aprojanz1,2, Inga Wille2, and Harald Jasper2 — 1University of Twente — 2Actega Metal Print GmbH
In this talk, we present a method of printing 2D materials based on flexographic printing. In this method, 2D materials are transferred to a polymeric surface. Using additives, we show that the adhesive properties of a polymeric thin film can be modified to enhance the transfer of the 2D material.
Crossectional atomic force spectroscopy together with surface spectroscopy allows for a greater understanding of the enhancements caused by the additive. Using low concentrations of the additive, we record a segregation of the additive towards the surface of the thin film, shown by an increase in the adhesive force and energy. Increasing the concentration of the additive from 1 to 10wt% enhances the adhesive properties at the surface while concentrations higher than 10wt% reduce the adhesive properties. Above 10
Results from this research are used for the design of a polymeric thin film suitable for 2D material printing.
Keywords: Polymeric thin film; 2D material printing; Additive; Atomic Force Microscopy; Crossection