dc.creator | Cabello Guzmán, G. | |
dc.creator | González, Diego | |
dc.creator | Caro Díaz, C. | |
dc.creator | Lillo Arroyo, L. | |
dc.creator | Valenzuela Melgarejo, F. | |
dc.creator | Cárdenas Triviño, G. | |
dc.creator | Buono-Core, G. E. | |
dc.creator | Chornik Aberbuch, Boris | |
dc.creator | Huentupil, Yosselin | |
dc.date.accessioned | 2019-05-31T15:19:50Z | |
dc.date.available | 2019-05-31T15:19:50Z | |
dc.date.created | 2019-05-31T15:19:50Z | |
dc.date.issued | 2018 | |
dc.identifier | Journal of Luminescence 204 (2018) 401–409 | |
dc.identifier | 00222313 | |
dc.identifier | 10.1016/j.jlumin.2018.08.034 | |
dc.identifier | https://repositorio.uchile.cl/handle/2250/169371 | |
dc.description.abstract | Y2O3 thin films doped with different concentrations of erbium ions and co-doped with 10 mol% of ytterbium were synthesized by a solid state photochemical deposition method followed by a subsequent calcination process. The photo-reactivity of the thin films was monitored by Fourier transform infrared (FT-IR) spectroscopy. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), UV–vis spectroscopy and photo-luminescence (PL) were employed to characterize the samples. The results reveal that Y2O3:Er films under 980 nm irradiation exhibit characteristic up-conversion emissions that are focused in the green region of the spectrum; these emissions are assigned to the (2H11/2, 4S3/2)→4I15/2 transitions of the Er3+ ions. These emissions greatly increase in intensity with the addition of Yb3+ ions in the preparation of the co-doped films. This phenomenon is explained based on the efficient Yb3+ → Er3+ energy transfer processes. | |
dc.language | en | |
dc.publisher | Elsevier | |
dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | |
dc.source | Journal of Luminescence | |
dc.subject | Energy transfer | |
dc.subject | Photochemical deposition | |
dc.subject | Thin films | |
dc.subject | Up-conversion emission | |
dc.title | Preliminary evaluation of the up-conversion emission of Y2O3:Er-Yb thin films prepared by a solid state photochemical deposition method | |
dc.type | Artículo de revista | |