Hierarchical surfaces for enhanced self-cleaning applications

Ariadna Fernández; Achille Francone; Lasse H. Thamdrup; Alicia Johansson; Brian Bilenberg; Theodor Nielsen; Markus Guttmann; Clivia M. Sotomayor Torres; Nikolaos Kehagias

doi:10.1088/1361-6439/aa62bb

Hierarchical surfaces for enhanced self-cleaning applications

Ariadna Fernández, Achille Francone, Lasse H. Thamdrup, Alicia Johansson, Brian Bilenberg, Theodor Nielsen, Markus Guttmann, Clivia M. Sotomayor Torres, Nikolaos Kehagias

Research output: Contribution to journal › Article › Research › peer-review

23 Citations (Scopus)

Abstract

© 2017 IOP Publishing Ltd. In this study we present a flexible and adaptable fabrication method to create complex hierarchical structures over inherently hydrophobic resist materials. We have tested these surfaces for their superhydrophobic behaviour and successfully verified their self-cleaning properties. The followed approach allow us to design and produce superhydrophobic surfaces in a reproducible manner. We have analysed different combination of hierarchical micro-nanostructures for their application to self-cleaning surfaces. A static contact angle value of 170 with a hysteresis of 4 was achieved without the need of any additional chemical treatment on the fabricated hierarchical structures. Dynamic effects were analysed on these surfaces, obtaining a remarkable self-cleaning effect as well as a good robustness over impacting droplets.

Original language	English
Article number	045020
Journal	Journal of Micromechanics and Microengineering
Volume	27
Issue number	4
DOIs	https://doi.org/10.1088/1361-6439/aa62bb
Publication status	Published - 20 Mar 2017

Keywords

hierarchical surface
nanoimprint
superhydrophobicity

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10.1088/1361-6439/aa62bb

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abstract = "{\textcopyright} 2017 IOP Publishing Ltd. In this study we present a flexible and adaptable fabrication method to create complex hierarchical structures over inherently hydrophobic resist materials. We have tested these surfaces for their superhydrophobic behaviour and successfully verified their self-cleaning properties. The followed approach allow us to design and produce superhydrophobic surfaces in a reproducible manner. We have analysed different combination of hierarchical micro-nanostructures for their application to self-cleaning surfaces. A static contact angle value of 170 with a hysteresis of 4 was achieved without the need of any additional chemical treatment on the fabricated hierarchical structures. Dynamic effects were analysed on these surfaces, obtaining a remarkable self-cleaning effect as well as a good robustness over impacting droplets.",

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T1 - Hierarchical surfaces for enhanced self-cleaning applications

AU - Fernández, Ariadna

AU - Francone, Achille

AU - Thamdrup, Lasse H.

AU - Johansson, Alicia

AU - Bilenberg, Brian

AU - Nielsen, Theodor

AU - Guttmann, Markus

AU - Sotomayor Torres, Clivia M.

AU - Kehagias, Nikolaos

PY - 2017/3/20

Y1 - 2017/3/20

N2 - © 2017 IOP Publishing Ltd. In this study we present a flexible and adaptable fabrication method to create complex hierarchical structures over inherently hydrophobic resist materials. We have tested these surfaces for their superhydrophobic behaviour and successfully verified their self-cleaning properties. The followed approach allow us to design and produce superhydrophobic surfaces in a reproducible manner. We have analysed different combination of hierarchical micro-nanostructures for their application to self-cleaning surfaces. A static contact angle value of 170 with a hysteresis of 4 was achieved without the need of any additional chemical treatment on the fabricated hierarchical structures. Dynamic effects were analysed on these surfaces, obtaining a remarkable self-cleaning effect as well as a good robustness over impacting droplets.

AB - © 2017 IOP Publishing Ltd. In this study we present a flexible and adaptable fabrication method to create complex hierarchical structures over inherently hydrophobic resist materials. We have tested these surfaces for their superhydrophobic behaviour and successfully verified their self-cleaning properties. The followed approach allow us to design and produce superhydrophobic surfaces in a reproducible manner. We have analysed different combination of hierarchical micro-nanostructures for their application to self-cleaning surfaces. A static contact angle value of 170 with a hysteresis of 4 was achieved without the need of any additional chemical treatment on the fabricated hierarchical structures. Dynamic effects were analysed on these surfaces, obtaining a remarkable self-cleaning effect as well as a good robustness over impacting droplets.

KW - hierarchical surface

KW - nanoimprint

KW - superhydrophobicity

U2 - 10.1088/1361-6439/aa62bb

DO - 10.1088/1361-6439/aa62bb

M3 - Article

VL - 27

IS - 4

M1 - 045020

ER -

Hierarchical surfaces for enhanced self-cleaning applications

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Keywords

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