In this paper, a thin film of (Pb2-xSbxBa2Ca2Cu3O10) was deposited on glass substrate using Pulsed Laser Deposition (PLD) method with a power of 400 watts, a frequency of 6 Hz and a rate of 200 pulses. The results showed that the X-ray measurements of the prepared films (crystals). Then, optical and compositional measurements were performed on the films to determine the transmittance and absorption spectrum as a function of the incident wavelength, the value and type of the energy gap. It was found that the energy gap decreases after annealing to become (1.9 eV). As for the structural measurements, the degree of crystallinity and the growth rate of granules and films with direct transfer were calculated. These results are close to those which are obtained previously. The thin films were thermally annealed at 400 °C for two hours. Thermal annealing greatly affects the prepared films, as the annealing improves the properties of the films.

Thin Film, Pb2-xSbxBa2Ca2Cu3O10, LPD, Thermal Annealing, Energy Gap