High-speed microcontact printing.
We have demonstrated microcontact printing (muCP) of self-assembled monolayers in the millisecond regime. The contact formation and separation of the stamp and substrate was studied with high-speed video recordings. Using high ink concentrations and contact times as short as 1 ms, we printed monolayers of hexadecanethiol on Au, which served as a selective etch resist. High-speed muCP yields defect-free monolayers that are independent of the dimensions of the printed patterns, have high contrast between printed and unprinted areas, and enable perfect reproducibility of prints.
Helmuth
Jo A
JA
Nanotechnology Group, ETH Zurich, CH-8092 Zurich, Switzerland.
Schmid
Heinz
H
Stutz
Richard
R
Stemmer
Andreas
A
Wolf
Heiko
H