a Energy and Renewable Energies Technology Center, University of Technology, Baghdad

b Department of physics, College of Education for Pure Science / Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq

c Physics Department /College of Science / Mustansiriyah University / Baghdad/ Iraq

In this research Ag2O and Vo2 were prepared by using the simple chemical method in three different ratio S1(VO2)100% , S2 (VO2)75% : (Ag2O)25% , S3( VO2)50% : (Ag2O)50% , S4 ( VO2)25% : (Ag2O)75% and S5(Ag2O)100% deposited on glasses substrate using the drop casting method . Both structural and optical examinations were conducted for these films, where the XRD examination confirmed the composition of each of the two prepared materials, with calculation of each of the crystalline size, micro strain and dislocation density. The AFM and SEM techniques showed that all the prepared films had smooth semi-spherical shapes with the presence of rough particles in very small quantity. The UV examination clearly showed that the two prepared films had a high transmission increases with increasing the wavelength with a very low absorbance within the range (200- 1000) nm with calculation of the energy gap for both prepared films. The effective bonds of the two material Ag2O and Vo2 were identified, which were different between stretching bonds and bending bonds using the FTIR technique. The two thin films were applied as antidotes to five different types of bacteria that are harmful to living organism. The effectiveness of these films in fighting these diverse bacteria was proven in this research.