Solvothermal synthesis and luminescent properties of monodisperse LaPO{sub 4}:Ln (Ln=Eu{sup 3+}, Ce{sup 3+}, Tb{sup 3+}) particles

Journal Article · Fri May 15 04:00:00 EDT 2009 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2009.01.024· OSTI ID:21370376

Piaoping, Yang ^[1]; Zewei, Quan; Chunxia, Li ^[1]; Zhiyao, Hou; Wenxin, Wang ^[2]

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1. State Key laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (China)
2. College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001 (China)

Monodisperse rare-earth ion (Eu{sup 3+}, Ce{sup 3+}, Tb{sup 3+}) doped LaPO{sub 4} particles with oval morphology were successfully prepared through a facile solvothermal process without further heat treatment. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectra (XPS), Fourier transform infrared spectroscopy (FT-IR), photoluminescence (PL) spectra and the kinetic decays were performed to characterize these samples. The XRD results reveal that all the doped samples are well crystalline at 180 deg. C and assigned to the monoclinic monazite-type structure of the LaPO{sub 4} phase. It has been shown that all the as-synthesized samples show perfectly oval morphology with narrow size distribution. The possible growth mechanism of the LaPO{sub 4}:Ln has been investigated as well. Upon excitation by ultraviolet radiation, the LaPO{sub 4}:Eu{sup 3+} phosphors show the characteristic {sup 5}D{sub 0}-{sup 7}F{sub 1-4} emission lines of Eu{sup 3+}, while the LaPO{sub 4}:Ce{sup 3+}, Tb{sup 3+} phosphors demonstrate the characteristic {sup 5}D{sub 4}-{sup 7}F{sub 3-6} emission lines of Tb{sup 3+}. - Graphical abstract: Monodisperse rare-earth ion (Eu{sup 3+}, Ce{sup 3+}, Tb{sup 3+}) doped LaPO{sub 4} phosphors with monazite-type structure and uniform oval morphology and strong emission intensity have been prepared through a facile solvothermal process.

• OSTI ID: 21370376
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 5 Vol. 182; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CERIUM IONS
CHARGED PARTICLES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
DOPED MATERIALS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
EMISSION
EUROPIUM IONS
HEAT TREATMENTS
INFRARED SPECTRA
IONS
LANTHANUM COMPOUNDS
LANTHANUM PHOSPHATES
LUMINESCENCE
MATERIALS
MICROSCOPY
MONOCLINIC LATTICES
MORPHOLOGY
OXYGEN COMPOUNDS
PHOSPHATES
PHOSPHORS
PHOSPHORUS COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PHOTOLUMINESCENCE
PHOTON EMISSION
RADIATIONS
RARE EARTH COMPOUNDS
SCANNING ELECTRON MICROSCOPY
SCATTERING
SPECTRA
SPECTROSCOPY
SYNTHESIS
TEMPERATURE RANGE
TEMPERATURE RANGE 0400-1000 K
TERBIUM IONS
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET RADIATION
X-RAY DIFFRACTION
X-RAY PHOTOELECTRON SPECTROSCOPY