Осаждение прозрачных покрытий Al-=SUB=-2-=/SUB=-O-=SUB=-3-=/SUB=- с экстремальными свойствами смачивания методом наносекундной лазерной абляции алюминия в фоновом кислороде

Abstract

Transparent aluminum oxide nanostructures with extreme wetting properties were synthesized by nanosecond laser deposition in background oxygen. The transparency and morphology of the samples have been analyzed. Non-monotonic behavior of the transmittance coefficient was found when varying the background oxygen pressure in the range of 20-140 Pa due to differences in the kinetics of ablation product dispersion. The evolution of the contact wetting angle from ~ 5 to ~ 120◦ when the coatings are stored in air under normal conditions was investigated.