Influence of Ar-impurities on the wettability of IBS-deposited Y2O3 thin films
- Journal Article
The wettability and the control of the contact angle of surfaces are important for various applications. Materials with a water contact angle less than or greater than 90 deg are hydrophilic or hydrophobic, respectively. Most of the binary oxides are hydrophilic, but oxides of rare earth metals and metal atoms with low electronegativity have hydrophobic surfaces. Yttria is one of the materials predicted to have hydrophobic properties. In this work, we investigated the wettability of ion-beam-sputtered Yttria thin films. The measured water contact angles were between 67° and 96°. The concentration of the embedded argon atoms was found to influence the contact angle. Show more
Journal / seriesApplied Surface Science
Pages / Article No.
SubjectHydrophobic oxides; Ion beam sputtering; Argon-gas; Yttria; Optical coatings
MoreShow all metadata