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Journal of Nanoparticle Research

Erschienen in:

01.08.2010 | Comm. on novel techn. and applications

Fabrication and luminescent properties of CaWO₄:Ln³⁺ (Ln = Eu, Sm, Dy) nanocrystals

verfasst von: Wenxin Wang, Piaoping Yang, Shili Gai, Na Niu, Fei He, Jun Lin

Erschienen in: Journal of Nanoparticle Research | Ausgabe 6/2010

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Abstract

Scheelite CaWO₄ doped with rare earth ions (Eu³⁺, Sm³⁺, Dy³⁺) were fabricated via a facile solvothermal process without further heat treatment, which used sodium oleate and oleylamine as capping reagent. The structure, morphology, and optical properties of the samples were well characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), high-resolution transmission electron microscope (HRTEM), X-ray photoelectron spectra (XPS), photoluminescence (PL) spectra and cathodoluminescence (CL). The XRD results reveal that all the doped samples are well assigned to the scheelite structure of the CaWO₄ phase. Upon excitation by ultraviolet radiation, the CaWO₄:Eu³⁺ phosphors show the characteristic ⁵D₀–⁷F_1–3 emission lines of Eu³⁺, and the CaWO₄:Sm³⁺ phosphors demonstrate the characteristic ⁴G_5/2–⁶H_5/2–9/2 emission line of Sm³⁺, and the CaWO₄:Dy³⁺ phosphors demonstrate the characteristic ⁴F_9/2–⁶H_13/2–15/2 emission line of Dy³⁺.

Vorheriger Artikel Microwave-assisted synthesis and characterization of SrMoO4 and SrWO4 nanocrystals

Nächster Artikel Erratum to: Elaboration and characterization of bimetallic nanoparticles obtained by laser ablation of Ni75Pd25 and Au75Ag25 targets in water

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Titel: Fabrication and luminescent properties of CaWO4:Ln3+ (Ln = Eu, Sm, Dy) nanocrystals
verfasst von: Wenxin Wang
Piaoping Yang
Shili Gai
Na Niu
Fei He
Jun Lin
Publikationsdatum: 01.08.2010
Verlag: Springer Netherlands
Erschienen in: Journal of Nanoparticle Research / Ausgabe 6/2010
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI: https://doi.org/10.1007/s11051-010-9850-4

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