Bazta, OtmanUrbieta Quiroga, Ana IrenePiqueras De Noriega, Francisco JavierFernández Sánchez, PalomaAddou, MohammedCalvino, J. J.Hungría, A. B.2023-06-172023-06-172019-04-150272-884210.1016/j.ceramint.2018.12.178https://hdl.handle.net/20.500.14352/13256©2019 Elsevier Science This work was supported by MINECO/FEDER (MAT 2016-81118-P and MAT 2015-65274-R). O.B. thanks Aula del Estrecho fellowship.This study reports on the deposition of highly transparent, n-type ZnO thin films on glass substrate at 450 C using spray pyrolysis processing, with the simultaneous insertion of yttrium (Y) at different percentages (0, 2, 5, 7 at%) as a dopant. The effect of Y doping on the structure, morphology and optical properties of Y doped ZnO (ZnO:Y) was investigated for optoelectronic applications. The obtained thin films were characterized by means of X-ray diffraction, field-emission scanning electron microscopy (FESEM), UV visible absorbance measurements, photoluminescence (PL) and cathodoluminescence (CL) spectroscopy. The as-prepared films exhibit well-defined hexagonal wurtzite structure grown along [002]. Field emission scanning electron microscope micrographs of the pure ZnO and ZnO:Y showed that the films acquired a dominance of hexagonal-like grains, the morphology was influenced by Y incorporation. All the films showed high transparency in the visible domain with an average transmittance of 83%. The band gap energy, Eg, increased from 3.12 eV to 3.18 eV by increasing the Y doping concentration up to 5 at% and then decreased to 3.15 eV for 7 at% Y content. The PL and CL measurements reveal a strong ultraviolet (UV) emission, suggesting that the as-prepared ZnO:Y thin films can potentially be used in optoelectronic devices.engAtribución-NoComercial-SinDerivadas 3.0 Españahttps://creativecommons.org/licenses/by-nc-nd/3.0/es/journal articlehttp://dx.doi.org/10.1016/j.ceramint.2018.12.178https://www.sciencedirect.comopen access538.9Zinc-oxideElectrical-propertiesPhotoluminescence propertiesHydrothermal synthesisAlMicrostructureLuminescenceOptimizationTemperatureDependenceFilmsOptical propertiesZnoY dopedSpray pyrolysisFísica de materialesFísica del estado sólido2211 Física del Estado Sólido