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- W2045508905 abstract "CeF{sub 3} and CeF{sub 3}:Tb{sup 3+} nanocrystals were successfully synthesized through a facile and effective polyol-mediated route with ethylene glycol (EG) as solvent. Various experimental techniques including X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and photoluminescence (PL) spectra as well as decay dynamics were used to characterize the samples. The results indicated that the content of NH{sub 4}F and reactant concentrations were key factors in the product shape and size. Excessive NH{sub 4}F was necessary for the formation of hexagonal nanoplates. The specific morphology of product can be controlled by changing the NH{sub 4}F content and reactant concentrations. In addition, Tb{sup 3+} doped-CeF{sub 3} sample shows strong green emission centered at 544 nm corresponding to the {sup 5}D{sub 4}-{sup 7}F{sub 5} transition of Tb{sup 3+}. Due to the decrease of nonradiative decay rate, the lifetime of {sup 5}D{sub 4} level of Tb{sup 3+} become longer gradually upon increasing the size of product. -- Graphical abstract: 0D nanoparticles and 2D nanoplates CeF{sub 3} and CeF{sub 3}:Tb{sup 3+} have been successfully fabricated through a facile polyol process. Display Omitted Research highlights: {yields} 0D nanoparticles and 2D nanoplates CeF{sub 3} were fabricated by polyol process. {yields} Morphology of product depends onmore » the content of NH{sub 4}F and reactant concentrations. {yields} CeF{sub 3}:Tb{sup 3+} shows strong green emission via Ce{sup 3+}-Tb{sup 3+} energy transfer route. {yields} Decay process of {sup 5}D{sub 4} level of Tb{sup 3+} tends to slower increasing the size of products.« less" @default.
- W2045508905 created "2016-06-24" @default.
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- W2045508905 date "2011-02-01" @default.
- W2045508905 modified "2023-10-16" @default.
- W2045508905 title "Polyol-mediated solvothermal synthesis and luminescence properties of CeF3, and CeF3:Tb3+ nanocrystals" @default.
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- W2045508905 doi "https://doi.org/10.1016/j.jssc.2010.11.015" @default.
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