Simple and clean method for obtaining Sn nanoparticles for hydrophobic coatings

•A new, clean and versatile method to obtain Sn NPs directly on a substrate is shown.•The size and density of NPs can be varied by changing deposition parameters.•Sn NPs can be used for hydrophobic coatings. Sn nanoparticles (NPs) are usually obtained by difficult chemical routes in several steps fo...

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Bibliographic Details
Published in:Materials letters 2020-11, Vol.278, p.128419, Article 128419
Main Authors: Buruiana, A.T., Sava, F., Matei, E., Zgura, I., Burdusel, M., Mihai, C., Velea, A.
Format: Article
Language:English
Subjects:
Contact angle
Hydrophobic coatings
Hydrophobicity
Materials science
Morphology
Nanoparticles
Particles, nanosize
Physical vapour deposition
Silicon dioxide
Silicon substrates
Wettability
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Summary:•A new, clean and versatile method to obtain Sn NPs directly on a substrate is shown.•The size and density of NPs can be varied by changing deposition parameters.•Sn NPs can be used for hydrophobic coatings. Sn nanoparticles (NPs) are usually obtained by difficult chemical routes in several steps followed by thermal treatments. Here, a simple and clean method, to obtain Sn NPs directly on the substrate, is developed based on a vapor transport technique. The method is versatile, thus can be easily adjusted to obtain Sn NPs of different size, areal density and morphology, by controlling the deposition conditions. NPs are grown on Si/SiO2 substrate and characterized. Water contact angle measurements show that Sn nanoparticles increase the surface hydrophobicity by 20%. Thus, NPs cleanly obtained from a low-cost, earth-abundant, and environmentally friendly material, can be used to modulate the wettability of surfaces.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2020.128419