Park K, Kim K Y
Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Korea.
J Nanosci Nanotechnol. 2011 Aug;11(8):7361-4. doi: 10.1166/jnn.2011.4774.
We synthesized (Gd(1-x)Yx)(0.94)PO4:Eu(0.06) (0 < or = x < or = 1.0) phosphor powders of an ultra-fine size (approximately 23 nm), smooth surface, and spherical and regular morphologies by the solution combustion method. The crystallite sizes of the annealed (Gd(1-x)Yx)(0.94)PO4:Eu(0.06) 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 Y(0.94)PO4:Eu(0.06) phosphor emitted the strongest intensity and the purest red color.
我们通过溶液燃烧法合成了尺寸超小（约23纳米）、表面光滑且具有球形和规则形态的(Gd(1-x)Yx)(0.94)PO4:Eu(0.06)（0≤x≤1.0）荧光粉。x = 0、0.25、0.5、0.75和1.0时，退火后的(Gd(1-x)Yx)(0.94)PO4:Eu(0.06)荧光粉的微晶尺寸分别为63.3、62.3、49.9、45.1和43.3纳米。研究了荧光粉在真空紫外激发下的光致发光特性，该特性取决于Y3+浓度。对应红色发射的峰强度随Y3+浓度的增加而增加。Y(0.94)PO4:Eu(0.06)荧光粉发射出最强的强度和最纯的红色。
