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231224s2014 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1021/la500395e
|2 doi
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|a eng
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| 100 |
1 |
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|a Kondrashov, Vitaliy
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Microcones and nanograss
|b toward mechanically robust superhydrophobic surfaces
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| 264 |
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|c 2014
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 15.04.2015
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|a Date Revised 23.04.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We describe the generation of mechanically robust superhydrophobic surfaces, which carry a hierarchical roughness that is composed of silicon microcones and silicon nanograss. Both micro and nanostructures were fabricated using mask-free dry etching processes. The microcones were obtained utilizing a cryogenic deep reactive ion etching (DRIE) process run in the overpassivation regime. By varying process parameters, surfaces with different microcones geometries and densities were achieved. The nanograss was fabricated using a modified DRIE process with alternating etching and passivation cycles ('BOSCH process'). All surfaces were covered with a layer of a fluorinated film so that superhydrophobic structures resulted. Depending on microcone geometry and density, the advancing contact angle ranged between 170° and 180°, and roll-off angles of 10 μL drops between 30' (0.5°) and 6° were observed. The samples were exposed to varying shear loads, and the changes in the morphology were recorded by using electron microscopy. The wetting angles of the mechanically challenged surfaces were recorded and correlated with the mechanical properties of the samples
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| 650 |
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|a Journal Article
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1 |
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|a Rühe, Jürgen
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 30(2014), 15 vom: 22. Apr., Seite 4342-50
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
1 |
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|g volume:30
|g year:2014
|g number:15
|g day:22
|g month:04
|g pages:4342-50
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|u http://dx.doi.org/10.1021/la500395e
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