Island organization of TiO2 hierarchical nanostructures induced by surface wetting and drying

We report on the reorganization and bundling of titanium oxide nanostructured layers, induced by wetting with different solvents and subsequent drying. TiO(2) layers are deposited by pulsed laser deposition and are characterized by vertically oriented, columnar-like structures resulting from assembl...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 27(2011), 5 vom: 01. März, Seite 1935-41
1. Verfasser: Fusi, M (VerfasserIn)
Weitere Verfasser: Di Fonzo, F, Casari, C S, Maccallini, E, Caruso, T, Agostino, R G, Bottani, C E, Li Bassi, A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't titanium dioxide 15FIX9V2JP Titanium D1JT611TNE
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520 |a We report on the reorganization and bundling of titanium oxide nanostructured layers, induced by wetting with different solvents and subsequent drying. TiO(2) layers are deposited by pulsed laser deposition and are characterized by vertically oriented, columnar-like structures resulting from assembling of nanosized particles; capillary forces acting during evaporation induce bundling of these structures and lead to a micrometer-size patterning with statistically uniform islands separated by channels. The resulting surface is characterized by a hierarchical, multiscale morphology over the nanometer-micrometer length range. The structural features of the pattern, i.e., characteristic length, island size, and channel width, are shown to depend on properties of the liquid (i.e., surface tension) and thickness and density of the TiO(2) layers. The studied phenomenon permits the controlled production of multiscale hierarchically patterned surfaces of nanostructured TiO(2) with large porosity and large surface area, characterized by superhydrophilic wetting behavior without need for UV irradiation 
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700 1 |a Di Fonzo, F  |e verfasserin  |4 aut 
700 1 |a Casari, C S  |e verfasserin  |4 aut 
700 1 |a Maccallini, E  |e verfasserin  |4 aut 
700 1 |a Caruso, T  |e verfasserin  |4 aut 
700 1 |a Agostino, R G  |e verfasserin  |4 aut 
700 1 |a Bottani, C E  |e verfasserin  |4 aut 
700 1 |a Li Bassi, A  |e verfasserin  |4 aut 
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