Anti-sticking layers for nickel-based nanoreplication tools
Reliable anti-sticking coatings on nickel surfaces are produced based on perfluoro-alkyl phosphates and -phosphonates. Oxygen plasma pre-treatment yields 5nm oxide suitable for layer attachment. Friction force and contact angle measurements confirm the adapted surface properties. Stability is demonstrated with repeated nano-imprint cycles and XPS.
anti-sticking layers fluorinated alkyl monolayers nanoimprint lithography injection molding adhesion demolding