title: Sliding of water droplets on the superhydrophobic surface with ZnO nanorods.
abstract: In this study, we prepared various superhydrophobic surfaces using ZnO nanorod arrays (ZnO-NR) of different diameters. The contact angle was equivalent to the calculated value if it is assuming that the topmost surface of the rods is a solid-liquid contact area. On the superhydrophobic ZnO-NR surfaces, the 5 microL water droplets slid down by constant acceleration motion. Sliding acceleration was governed by the solid area fraction. The resistance force of the actual measurement was consistent with that calculated using the model.
authors.affiliation: Kanagawa Academy of Science and Technology, 308 East, Kanagawa Science Park, 3-2-1 Sakado, Takatsu-ku, Kawasaki-shi, Kanagawa 213-0012, Japan.
authors.forename: Munetoshi
authors.initials: M
authors.lastname: Sakai
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kono
authors.forename: Akira
authors.initials: A
authors.lastname: Nakajima
authors.forename: Xintong
authors.initials: X
authors.lastname: Zhang
authors.forename: Hideki
authors.initials: H
authors.lastname: Sakai
authors.forename: Masahiko
authors.initials: M
authors.lastname: Abe
authors.forename: Akira
authors.initials: A
authors.lastname: Fujishima