Silver oxide (Ag 2 O) thin films were deposited on glass substrates using electron beam gun evaporation techniques without oxygen atmosphere. The deposited films were post annealed at 100˚C, 150˚C, and 200˚C, respectively. The surface morphologies, structural and optical properties at different annealing temperatures were studied using scanning electron microscopy (SEM), X-ray diffraction (XRD), and ultra-violet-visible spectroscopy. The XRD results show that the intensity of (200)

No abstract

The thin films of WO3were prepared on cleaned microscopic glass substrates by the electron beam evaporation technique. The films were coated at room temperature using pure WO3pellets as source. The prepared films were further post heat treated at different temperatures (100°C to 350°C) for about 1hr in air. The optical properties of WO3 thin films were studied in detail. The increase in the density of the film as the annealing temperature increases have been confirmed by the transmittance spectra. The film annealed at 250°C shows a strong photoluminescence peak. The peak intensity is found to be less for all other temperature. The observed results were discussed in terms of crystalline nature of WO3.

No abstract