Influence of Surface Morphology on the Wettability of Microstructured ZnO-Based Surfaces

The effect of sample microstructure on water dynamic wetting behavior was examined for superhydrophobic ZnO films. Surface morphology ranging from needle arrays to overlapping platelets was controlled through judicious choice of hydrothermal reaction conditions. Structure modification with alkyl and...

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Veröffentlicht in:	Journal of physical chemistry. C 2008-12, Vol.112 (51), p.20398-20405
Hauptverfasser:	Piech, Martin, Sounart, Thomas L, Liu, Jun
Format:	Artikel
Sprache:	eng
Schlagworte:	C: Surfaces, Interfaces, Catalysis
Online-Zugang:	Volltext
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Zusammenfassung:	The effect of sample microstructure on water dynamic wetting behavior was examined for superhydrophobic ZnO films. Surface morphology ranging from needle arrays to overlapping platelets was controlled through judicious choice of hydrothermal reaction conditions. Structure modification with alkyl and perfluoroalkyl chains yielded films characterized by advancing contact angles that ranged from 159° to 171°. Contact angle hysteresis was less than 2° with needles (tip diameter
ISSN:	1932-7447 1932-7455
DOI:	10.1021/jp804815x