SPECTROSCOPIC INVESTIGATIONS ON SELF-CLEANING FILMS FOR PHOTOVOLTAIC GLASSES

Titanium dioxide thin coatings are widely used in different fields for the manufacture of various products:electrochromic displays, photocatalytic systems, photosensitized solar cells and many others. At the same time, the possibilities for obtaining protective coatings based on TiO2 are of interest. The chemical and physical characteristics of the TiO2 coatings depend on a large extent of the applied technological method and the temperature values of the heat treatment used. Coatings are prepared by sol gel method applying dip coating technique. The present study characterizes self-cleaning TiO2 thin films for the photovoltaic application. The studies were carried out at different ratios of the components involved, rate of application of the solution on the glass substrate and different curing and holding temperatures. The coatings are dense and nanocrystal line according to AFM studies and optically transparent according to UV-Vis-NIR spectra.