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- W2885471288 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." @default.
- W2885471288 created "2018-08-22" @default.
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- W2885471288 date "2018-12-01" @default.
- W2885471288 modified "2023-10-01" @default.
- W2885471288 title "Preliminary evaluation of the up-conversion emission of Y2O3:Er-Yb thin films prepared by a solid state photochemical deposition method" @default.
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- W2885471288 doi "https://doi.org/10.1016/j.jlumin.2018.08.034" @default.
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