Abstract
Thin films of TiO2 and TiO2: Cu have been prepared on ITO substrates using RF magnetron sputtering technique, It is worthy to say that the thickness of the coated film was in the order of (220) nm. The films annealing in air at temperature 500 °C with 2 h. Optical of structural properties were identified with various preparation conditions like Cu-doping concentration (0%, 2% and 4%). These prepared films are polycrystalline with a anatase crystal structure. The crystallinity and the size of particle of the samples of prepared were studied by (XRD), the results specified the size of particle of the samples of prepared dropped with the high of Cu doping concentrations some of the properties of structure are varied by the addition Cu levels as dopants. The films are oriented of preferentially forever the (101) direction. We have got some morphology of surface by (SEM), the results show decreasing of particle size with increasing doping concentration. The results show that the doping caused to decreased the transmittance and energy gap from (3.6 to 3.4) eV. Activity antibacterial efficiency was estimated by the un activation of E.coli. It was spotted that rising Cu levels gives better activity of antibacterial.
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