Water ultrarepellency induced by nanocolumnar ZnO surface

Xin Tong Zhang, Osamu Sato, Akira Fujishima

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

A surface microtexture comprised of ZnO nanocolumns prepared by a facial cathodic electrode deposition was analyzed. The surface microtexture shows both advancing and receding contact angles (CA) of water higher than 150° after being modified with a monolayer of fluoroalkylsilane (FAS). The columnar surface showed such a small water CA hysteresis that water droplet could not adhered on the surface even placed horizontally. The results show that the ultrahydrophobic ZnO surface can be patterned by UV light, which was more important for a variety of applications such as microchips, microfluidic devices and biotechnology.

Original languageEnglish
Pages (from-to)6065-6067
Number of pages3
JournalLangmuir
Volume20
Issue number14
DOIs
Publication statusPublished - Jul 6 2004
Externally publishedYes

Fingerprint

Water
water
Contact angle
biotechnology
microfluidic devices
Biotechnology
Microfluidics
Ultraviolet radiation
Hysteresis
Monolayers
hysteresis
Electrodes
electrodes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

Cite this

Water ultrarepellency induced by nanocolumnar ZnO surface. / Zhang, Xin Tong; Sato, Osamu; Fujishima, Akira.

In: Langmuir, Vol. 20, No. 14, 06.07.2004, p. 6065-6067.

Research output: Contribution to journalArticle

Zhang, Xin Tong ; Sato, Osamu ; Fujishima, Akira. / Water ultrarepellency induced by nanocolumnar ZnO surface. In: Langmuir. 2004 ; Vol. 20, No. 14. pp. 6065-6067.
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