In this study, effect of Nd doping, as a dopant material on the structural, optical and electronic properties of lanthanum monazite structure has been studied. Pure and Nd:LaPO₄ powders with varying Nd concentrations were prepared via conventional high-temperature solid-state reaction method. Compositional information obtained using Energy dispersive X-ray spectroscopy showed that within the detection limit, no impurities were present in the samples. Oxidation states of the elements were confirmed from X-ray photoelectron spectroscopy (La and Nd) and X-ray absorption near edge structure studies (La). X-ray diffraction showed the formation of monoclinic crystal structure without any phase impurity. Fourier transform infra-red spectroscopic measurements confirmed the substitution of Nd in LaPO₄ matrix. We also report the first ever local structure analysis using Extended X-ray absorption fine structure which showed that the Nd atoms have successfully substituted La atoms in LaPO₄ matrix. The bandgaps were obtained from Diffuse reflectance UV-Visible spectroscopy.

在这项研究中，研究了作为掺杂剂材料的 Nd 掺杂对镧独居石结构的结构、光学和电子特性的影响。通过常规的高温固相反应方法制备了具有不同 Nd 浓度的纯 Nd:LaPO _4粉末。使用能量色散 X 射线光谱获得的成分信息表明，在检测限内，样品中不存在杂质。通过 X 射线光电子能谱（La 和 Nd）和 X 射线吸收近边缘结构研究（La）证实了元素的氧化态。X射线衍射表明形成了单斜晶体结构，没有任何相杂质。傅里叶变换红外光谱测量证实了 Nd 在 LaPO _{4中的替代}矩阵。我们还首次报告了使用扩展 X 射线吸收精细结构进行的局部结构分析，表明 Nd 原子已成功取代 LaPO ₄基质中的 La 原子。带隙是从漫反射紫外-可见光谱中获得的。