title: Ultralow hysteresis superhydrophobic surfaces by excimer laser modification of SU-8.
abstract: We present a new and simple method to produce superhydrophobic surfaces with ultralow hysteresis. The method involves surface modification of SU-8 using an excimer laser treatment. The modified surface is coated with a hydrophobic plasma-polymerized hexafluoropropene layer. The advancing and receding water contact angles were measured to be approximately 165 degrees . The achieved water contact angle hysteresis was below the measurement limit. This low hysteresis can be ascribed to nanoscale debris generated during the excimer laser process.
authors.affiliation: Scandinavian Micro Biodevices ApS, Gammelgårdsvej 87C, DK-3520 Farum, Denmark.
authors.forename: R Martijn
authors.initials: RM
authors.lastname: Wagterveld
authors.forename: Christian W J
authors.initials: CW
authors.lastname: Berendsen
authors.forename: Salim
authors.initials: S
authors.lastname: Bouaidat
authors.forename: Jacques
authors.initials: J
authors.lastname: Jonsmann