from the conferences organized by TANGER Ltd. provisional website
In our investigations we prepared two different kinds of oxide coatings aiming for highly active photocatalytic properties and moreover deposition conditions, which could make them useful potentially also for temperature sensitive substrate materials. The first ones are titanium oxide thin films created by PECVD under atmospheric pressure conditions, Secondly, zinc oxide coatings were created by sol-gel technique via dip-coating. Investigations on the morphology (SEM), layer thickness (profilometry), and photocatalytic properties (decomposition of stearic acid after irradiation) were conducted. The results show the possibility to obtain layers with photocatalytic properties comparable with commercially available products even without any additional substrate heating during the plasma deposition or a thermal post treatment. However, thermal post annealing at 450 °C or flash lamp annealing can further improve this photocatalytic effect. Furthermore, first experiments showed that these coatings possess strong antimicrobial properties (towards bacteria and fungi).Keywords: atmospheric pressure PECVD, sol-gel deposition, photocatalytic thin films, antimicrobial properties, titanium oxide, zinc oxide, temperature sensitive materials
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