Bibliographic citations
Aponte, W., (2018). Propiedades luminiscentes y estructurales de las películas delgadas de oxinitruro de aluminio dopado con iterbio obtenidas por metodologías combinatorias [Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/11910
Aponte, W., Propiedades luminiscentes y estructurales de las películas delgadas de oxinitruro de aluminio dopado con iterbio obtenidas por metodologías combinatorias []. PE: Pontificia Universidad Católica del Perú; 2018. http://hdl.handle.net/20.500.12404/11910
@mastersthesis{sunedu/2658861,
title = "Propiedades luminiscentes y estructurales de las películas delgadas de oxinitruro de aluminio dopado con iterbio obtenidas por metodologías combinatorias",
author = "Aponte Huamantinco, Wilson",
publisher = "Pontificia Universidad Católica del Perú",
year = "2018"
}
In the present work the light emission and the structure of a library of thin films of ALOxNy doped with Yb deposited on Si with the sputtering technique by radio frequency at through the application of combinatorial methodologies. The library of thin films was subjected to thermal treatments of 550 °C, 650 °C and 750 °C. After each heating, the variation in the atomic composition of the sample and its respective characterization in the luminescent and structural properties of the sample was evaluated. The emission intensity of Yb increases with the increase in the concentration of Yb (>3.5 at.%) in the unheated sample. With the application of thermal treatments, a variation in the thickness and the O: N ratio of the matrix can be generated, which influenced the increase and/or decrease in the intensity of the luminescence emission of Yb. The results show the thermal activation of the levels of Yb with the increase of the heating temperature. From the Arrhenius plot, the energy of the thermal energy of the ratios is calculated for diferent ratios of O: N. The highest emission intensity was obtained at 750 °C, in the region with an initial concentration of Yb of ~4 at% and relation O: N ~1.7. The X-ray diraction patterns verify the amorphous state of the samples before and after the heat treatment. In the analysis of the optical properties of the thin lms of ALOxNy, they show an increase in the refractive index and the bandwidth as the oxygen in the sample increases.
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