Abstract

• The film of pure nO and nS – nO nanocomposite films have been prepared by chemical deposition method by varying the concentration ratio of pure nO and nS – nO nanocomposite powder. The preparation of these films grown on glass substrates were reported in this work. The optical properties of the samples were characterized by UV- Vis spectroscopy within wavelength range of 190 nm and 1100 nm. nS – nO nanocomposite (90 % - 10%) exhibited the maximum degree of optical band gap (3.295 eV) why the lowest band gap (2.749 eV) was obtained by nS – nO nanocomposite film (50% - 50 % ).