In this paper, Ce/Sm co-doped hydroxyapatites (HAps) were synthesized by a wet chemical route. The amount of Ce was kept at constant at the value of at.% 0.4, and the second dopant of Sm was used at different amounts of at.% 0, 0.6, 1.2, and 1.8, respectively. The effects of these co-dopants on the crystal structure, morphology, and thermal properties of HAp were determined experimentally using X-ray diffraction (XRD), scanning electron microscopy (SEM), differential thermal analysis (DTA), and thermogravimetric analysis (TGA). Furthermore, the band structure of the prepared samples was modeled theoretically using the quantum calculations of the density of states and band structure. A gradual increase from 26.56 to 36.23 nm in the crystallite size was observed. Although the amounts of the co-dopants of Ce and Sm did not affect the thermal stability and microstructure of HAp, its crystal structure-related parameters were affected by the amount of these co-additives. The partial substitution of both co-dopants was detected. The 0.4Ce-1.2Sm-HAp sample may be considered as the best crystal structure with a steady-state. It was seen that the band structure and density of states were also affected by these co-dopants. The bandgap value decreased gradually from 4.6078 to 4.0477 eV due to these dopants.

本文采用湿化学法合成了Ce / Sm共掺杂羟基磷灰石（HAps）。Ce的量保持恒定，为0.4％的原子百分数，并且Sm的第二掺杂剂分别以不同的0％，0.6、1.2和1.8％的量使用。使用X射线衍射（XRD），扫描电子显微镜（SEM），差热分析（​​DTA）和热重分析（TGA）通过实验确定了这些共掺杂剂对HAp的晶体结构，形态和热性能的影响）。此外，使用状态密度和能带结构的量子计算从理论上模拟了所制备样品的能带结构。观察到微晶尺寸从26.56nm逐渐增加到36.23nm。尽管Ce和Sm共掺杂物的量不影响HAp的热稳定性和微观结构，但其晶体结构相关参数受这些共添加剂的量的影响。检测到两种共掺杂剂的部分取代。0.4Ce-1.2Sm-HAp样品可被认为是具有稳态的最佳晶体结构。可以看出，这些共掺杂物也影响了能带结构和态密度。由于这些掺杂剂，带隙值从4.6078逐渐降低至4.0477 eV。可以看出，这些共掺杂物也影响了能带结构和态密度。由于这些掺杂剂，带隙值从4.6078逐渐降低至4.0477 eV。可以看出，这些共掺杂物也影响了能带结构和态密度。由于这些掺杂剂，带隙值从4.6078逐渐降低至4.0477 eV。