溶液燃烧法制备Nd^(3+)掺杂LaBO_(3)荧光粉

Preparation of Nd^(3+) Doped LaBO_(3) Phosphors by Solution Combustion Method

以La(NO_(3))_(3)·6H_(2)O、H_(3)BO_(3)为原料、C_(2)H_(5)NO_(2)为燃烧剂、Nd(NO_(3))_(3)·6H_(2)O为改性剂,通过溶液燃烧法合成Nd^(3+)掺杂LaBO_(3)荧光粉。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、紫外-可见漫反射光谱(UV-Vis DRS)以及荧光光谱(PL)对产物进行表征分析。结果表明,制备的粉体均为正交晶系硼酸镧,在煅烧温度875℃、Nd^(3+)掺杂量3%的优化条件下制备的硼酸镧荧光粉发光性能最好,且其在紫外光区和可见光区均表现出良好的光吸收性能,发蓝绿色光,可广泛应用于激光照明和LED照明等领域。

Using La(NO_(3))_(3)·6H_(2)O and H_(3)BO_(3) as raw materials,C_(2)H_(5)NO_(2) as combustion agent,and Nd(NO_(3))_(3)·6H_(2)O as modifier,Nd^(3+) doped LaBO_(3) phosphors were synthesized by solution combustion method.The products were characterized by X-ray diffraction(XRD),scanning electron microscope(SEM),ultraviolet-visible diffuse reflection spectrum(UV-Vis DRS),and fluorescence spectrum(PL).The results show that the prepared powders are all orthorhombic lanthanum borate and the phosphors prepared under the optimized conditions of calcination temperature of 875 ℃ and Nd^(3+) doping amount of 3% have the best luminescent performance,showing good light absorption performance in both ultraviolet and visible light regions and emitting blue-green light,which can be widely used in the fields of laser illumination and LED lighting.