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 5D0–7F1–3 emission lines of Eu3+, and the CaWO4:Sm3+ phosphors demonstrate the characteristic 4G5/2–6H5/2–9/2 emission line of Sm3+, and the CaWO4:Dy3+ phosphors demonstrate the characteristic 4F9/2–6H13/2–15/2 emission line of Dy3+.
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 5D0–7F1–3 emission lines of Eu3+, and the CaWO4:Sm3+ phosphors demonstrate the characteristic 4G5/2–6H5/2–9/2 emission line of Sm3+, and the CaWO4:Dy3+ phosphors demonstrate the characteristic 4F9/2–6H13/2–15/2 emission line of Dy3+.
- Content Type Journal Article
- Category Comm. on novel techn. and applications
- DOI 10.1007/s11051-010-9850-4
- Authors
- Wenxin Wang, Harbin Engineering University College of Material Science and Chemical Engineering 150001 Harbin People’s Republic of China
- Piaoping Yang, Harbin Engineering University College of Material Science and Chemical Engineering 150001 Harbin People’s Republic of China
- Shili Gai, Harbin Engineering University College of Material Science and Chemical Engineering 150001 Harbin People’s Republic of China
- Na Niu, Harbin Engineering University College of Material Science and Chemical Engineering 150001 Harbin People’s Republic of China
- Fei He, Harbin Engineering University College of Material Science and Chemical Engineering 150001 Harbin People’s Republic of China
- Jun Lin, Chinese Academy of Sciences State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry 130022 Changchun People’s Republic of China
- Journal Journal of Nanoparticle Research
- Online ISSN 1572-896X
- Print ISSN 1388-0764
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