title: Preparation and wettability examinations of transparent SiO2 binder-added MgF2 nanoparticle coatings covered with fluoro-alkyl silane self-assembled monolayer.
abstract: SiO2-added MgF2 nanoparticle coatings with various surface roughness properties were formed on fused silica-glass substrates from autoclaved sols prepared at 100-180 °C. To give it hydrophobicity, we treated the samples with fluoro-alkyl silane (FAS) vapor to form self-assembled monolayers on the nanoparticle coating and we examined the wettability of the samples. The samples preserved good transparency even after the FAS treatment. The wettability examination revealed that higher autoclave temperatures produced a larger average MgF2 nanoparticle particle size, a larger surface roughness, and a higher contact angle and the roll-off angle.
authors.affiliation: Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University, Chikusa, Nagoya, Japan. murata.go@nikon.co.jp
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Murata
authors.forename: Junko
authors.initials: J
authors.lastname: Hieda
authors.forename: Nagahiro
authors.initials: N
authors.lastname: Saito
authors.forename: Osamu
authors.initials: O
authors.lastname: Takai