In this study, NiO_x, Li:NiO_x, and Li,Mg:NiO_x powders (Li_0.05Mg_aNi_(0.95-a)O_x, a: 0.00; 0.05; 0.1; 0.15; 0.30) were produced by sol-gel method. Preformed powders were annealed at 350 °C, 500 °C, and 650 °C to monitor structural changes. Functional groups, compositions, phase structures, elemental analysis, morphology, and optical properties were investigated by Fourier transforms infrared spectroscopy (FTIR), X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and photoluminescence measurements (PL), respectively. The incorporation of Li⁺ and Mg²⁺ into NiO_x structure was successfully accomplished as seen on XPS results. Crystallite size decreased upon increasing dopant concentration. All of the powders, with bi-exponential decay curves, exhibited maximum emission peak at 550 nm under the excitation at 362 nm. A decrease in both emission based intensity and average decay time values was observed at addition of Li⁺ and Mg²⁺ into structure with respect to the pristine NiO_x.

在本研究中，NiO _x、Li:NiO _x和 Li,Mg:NiO _x粉末（Li _0.05 Mg _a Ni _(0.95-a) O _x , a: 0.00; 0.05; 0.1; 0.15; 0.30）是通过溶胶制备的-凝胶法。预制粉末在 350 °C、500 °C 和 650 °C 下退火以监测结构变化。通过傅里叶变换红外光谱 (FTIR)、X 射线衍射仪 (XRD)、X 射线光电子能谱 (XPS)、扫描电子显微镜 (SEM) 研究了官能团、组成、相结构、元素分析、形貌和光学性质和光致发光测量（PL）。Li ⁺和 Mg ²⁺与 NiO 的结合如 XPS 结果所示，_x结构已成功完成。随着掺杂剂浓度的增加，微晶尺寸减小。所有具有双指数衰减曲线的粉末在 362 nm 激发下在 550 nm 处显示出最大发射峰。在相对于原始 NiO _{x 的}结构中添加 Li ⁺和 Mg ²⁺时，观察到基于发射的强度和平均衰减时间值均降低。