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ZrO2:Pr films were synthesized by ultrasonic spray pyrolysis process. X-Ray Diffraction studies, as a function of the deposition temperature, were carried out, which indicates a cubic-tetragonal crystal structure of zirconia as the substrate temperature was increased. Luminescence properties of the films were studied as a function of growth parameters such as the substrate temperature and the praseodimium concentration. For an excitation wavelength of 290 nm, all the photoluminescent emission spectra show peaks located at 490, 510, 566, 615, 642, 695, 718, 740 y 833 nm, associated to the electronic transitions 3P03H4, 3P03H4 ,3P0 3H5, 3P0 3H6, 3P0 3F2, 3P0 3F4, 3P0 3F4, 3P0 3F4 y 1D2 3F4 of the Pr3+ ion. While increase the deposition temperatures it is observed a greater intensity of the luminescence emission. Also, a quenching of the luminescence, as a function of the doping concentration, is observed. In addition, the surface morphology characteristics of the films, as a function of the deposition temperature, are presented. |