Abstract
Nanoscale Lu 2O 3:Eu 3+ phosphor was prepared by a modified solution combustion method using urea and acrylamide monomer. The particle sizes and photoluminescent properties of nano-phosphor were closely related to the molar ratio of urea-to-RE nitrates and acrylamide monomer-to-RE nitrates. The as-prepared samples with the sizes of 9.6-11.6 nm were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive spectrometer. Lu 2O 3:Eu 3+ nano-phosphor that depicted high photoluminescence in the size around 10 nm was reported. Compared with the sample prepared by solid state reaction, the photoluminescence of sample was increased sufficiently to be 45.1%. The emission spectra of the samples presented the typical emission from 5D 0 level to 7F J ( J=0, 1, 2, 3, 4) level of the Eu 3+ ion.
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