Open AccessFunctional coating preparation based on zinc oxide using low temperature plasma
Author(s) -
S. A. Nosov,
А. А. Шинкарев,
V. E. Gorelysheva,
A. V. Savinkov
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1588/1/012063
Subject(s) - materials science , coating , zinc , contact angle , substrate (aquarium) , acicular , oxide , etching (microfabrication) , chemical engineering , phase (matter) , plasma , layer (electronics) , metal , composite material , wetting , metallurgy , microstructure , chemistry , oceanography , physics , quantum mechanics , engineering , organic chemistry , geology
The work describes the synthesis of superhydrophobic coating based on zinc oxide with a UV-driven reversible switching between hydrophilic and hydrophobic properties. A coating of vertically oriented acicular crystals of zinc oxide with dimensions of 1-2 μm in length and 50-200 nm in width on a metal substrate was obtained. According to the phase composition and morphology, the crystals correspond to zinc oxide-zincite. The contact angle for the coating after its exposure in a box isolated from daylight for 14 days is 150 °, while for the control metal substrate, the contact angle is 40 °. It is shown that the use of low temperature Ar plasma of low pressure allows changing the surface topography of acicular nanocrystals due to etching of their vertices and edges.