Luminescence Properties of GdP1-xVxO4:Eu3+ Phosphors

被引:2
作者
Shim, K. S. [1 ]
Jung, Y. R. [1 ]
Moon, B. K. [1 ]
Choi, B. C. [1 ]
Jeong, J. H. [1 ]
Bae, J. S. [2 ]
Kim, J. H. [3 ]
机构
[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea
[2] Korea Basic Sci Inst, Nanosurface Technol Res Lab, Pusan 609735, South Korea
[3] Dong Eui Univ, Dept Phys, Pusan 614714, South Korea
关键词
GdP1-xVxO4:Eu3+; Solid state reaction; Photoluminescence; Cathodeluminescence;
D O I
10.3938/jkps.53.3568
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Red emitting GdP1-xVxO4:Eu3+ (x = 0.00, 0.25, 0.50 and 0.75) powder phosphors were prepared by using a solid state reaction method. The doping concentration of Eu3+ ions was 3 mol.%. The microstructure and the surface morphology of the GdP1-xVxO4:Eu3+ powder phosphors with different compositions were analyzed by using X-ray diffraction (XRD) and field emission scanning electron microscope (FE-SEM), respectively. Both the XRD and the FE-SEM results indicated that the particles present in a good crystalline state had grain sizes in the range of similar to 100 nm. The characteristic emissions of Eu3+ due to D-5(0)-F-7(1) (orange) and D-5(0)-F-7(2) (red) transitions were detected. Furthermore, in the system of GdP1-xVxO4:Eu3+, the orange-to-red intensity ratio (O/R) depended greatly on the ratio of P/V. The crystallinity and the surface morphology of the powders also highly depended on the molar ratio P/V. The highest emission intensity was observed with the GdP0.5V0.5O4:Eu3+ powder whose brightness was increased by a factor of 40 times in comparison with that of GdPO4:Eu3+ powders. This phosphor holds promise for applications to flat panel displays.
引用
收藏
页码:3568 / 3571
页数:4
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