title: Stable superhydrophobic surface: fabrication of interstitial cottonlike structure of copper nanocrystals by magnetron sputtering.
abstract: A stable superhydrophobic copper surface was obtained by radio-frequency magnetic sputtering on Si (100) and quartz substrates. The water contact angle and sliding angle of the superhydrophobic copper surface were 160.5° and 3±1.9°, respectively. Scanning electron microscopy (SEM) photos show that the superhydrophobic surface structure comprises many uniform nanocrystals with a diameter of about 100 nm. A brief explanation of the formation of this special microstructure and the mechanism of its wettability were proposed.
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Guoxing
authors.initials: G
authors.lastname: Li
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Tian
authors.initials: T
authors.lastname: Tan
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Xuemei
authors.initials: X
authors.lastname: Song
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Er
authors.initials: E
authors.lastname: Li
authors.affiliation: Thin Film Laboratory, Beijing University of Technology, Beijing 100022, People's Republic of China.
authors.forename: Hui
authors.initials: H
authors.lastname: Yan
keywords: copper film; magnetron sputtering; nanostructure; superhydrophobic; wettability