Synthesis and Photoluminescence of Nano-Sized (Gd,Y)PO4:Eu3+ by Solution Combustion Method
Abstract:We synthesized (Gd1−x Y x )0.94PO4:Eu0.06 (0 ≤ x ≤ 1.0) phosphor powders of an ultra-fine size (∼23 nm), smooth surface, and spherical and regular morphologies by the solution combustion method. The crystallite sizes of the annealed (Gd1−x Yx)0.94PO4:Eu0.06 phosphors with x = 0, 0.25, 0.5, 0.75, and 1.0 were 63.3, 62.3, 49.9, 45.1, and 43.3 nm, respectively. The photoluminescent characteristics of the phosphors were studied under vacuum ultraviolet excitation, depending on the Y3+ concentration. The intensity of the peaks corresponding to the red emission increased with increases in the Y3+ concentration. The Y0.94PO4:Eu0.06 phosphor emitted the strongest intensity and the purest red color.
Document Type: Research Article
Publication date: 2011-08-01
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