belarbi asma2019-05-082019-05-082018-06-25salle des thesesMS/531.6-88/01https://dspace.univ-tlemcen.dz/handle/112/14148CDIn this work, thin layers of ZnO were obtained by a sol-gel process following a chemical protocol where zinc acetate is used as a precursor material. Thin ZnO films can be developed by several techniques, such as pyrolysis spray, thermal evaporation, cathodic sputtering, sol-gel, etc. In this work, thin layers of Zinc oxide were deposited by the sol-gel technique on glass substrates. The solution obtained is deposited on glass substrates by the spin-coating technique. Optical characterization of the films was performed using UV-Visible spectrophotometry in the spectral range of 280 to 800 nm. Analysis of the transmittance and absorbance spectra allowed us to determine the thicknesses.frThin layers, TCO, Zinc oxide, sol-gel, spin coating, UV-Visible spectrophotometer, ellipsometry.Couches minces, TCO, Oxyde de zinc, sol-gel, spin coating, spectrophotomètre UV-Visible, ellipsométrie,Thesis