Fabrication of hierarchical structures on alumina plate and its nonwetting property

Abstract

We have fabricated a micro-and nano-hierarchical structure on an alumina plate by a simple hydrothermal method. Hexafluorophosphate octahedrons with nanoparticles on each of the eight plane surfaces were obtained. After self-assembling of a film of perfluorooctanoic acid, the Al plate with a high contact angle of 160 AE 2 , exhibited a nonwetting property.