Nanostructure fabrication on the top of laser-made micropillars for enhancement of water repellence of aluminium alloy

P. Hauschwitz, R. Jagdheesh, D. Rostohar, J. Brajer, J. Kopeček, P. Jiříček, J. Houdková, T. Mocek

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Fabrication of superhydrophobic surfaces is a popular topic in research and industry due to many potential applications including self-cleaning, anti-icing or drag reduction. Laser micro and nanostructuring is an efficient method to replicate lotus leaves double-scale structures to achieve superhydrophobicity without chemical treatment. Immediately after laser processing, samples are hydrophilic and become hydrophobic in a few days, exposed to atmospheric conditions. This time was significantly reduced by vacuum processing to only 4 h. Two-step fabrication method of superhydrophobic surfaces have been developed using nanosecond laser system. In the first step, large scale micropillars are fabricated and covered by nano-scale protrusions in the following step using defocused laser beam. The nanostructure formation increased the apparent contact angle from 149° to 175°.

Original languageEnglish
Article number126601
JournalMaterials Letters
Early online date30 Aug 2019
Publication statusPublished - 1 Dec 2019
Externally publishedYes


This work was supported by European Structural and Investing Funds , Operational Programme Research, Development and Education (Grant agreement NO CZ.02.1.01/0.0/0.0/15_006/ 0000674) and from the European Union’s Horizon 2020 research and innovation programme (Grant agreement NO 739573) and by the Ministry of Education, Youth and Sports of the Czech Republic (grant LM2015088).


  • Fiber laser
  • Superhydrophobic
  • Aluminium
  • Nanostructures

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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