We report the synthesis, structural, optical and dielectric properties of single-phase spinel of Ni-substituted Zn nanoparticles prepared by co-precipitation method. The annealed samples at 1000 °C were characterized by X-ray diffraction (XRD) technique, infrared spectrophotometer (FTIR), UV–VIS spectrophotometer and dielectric measurements. X-ray diffraction analysis shows that the increase of zinc content has been manifested on crystallite size and lattice parameter. Crystallite size and lattice parameter were systematically increased from 83 to 130 nm and 8.386 to 8.443 Å, for x varied from 0.5 to 0.9. The FTIR analysis show two absorption bands in the wave number range of 400–540 cm⁻¹. The UV–VIS analysis shows that the estimated optical energy band gaps (E_g) of the samples, through Tauc plots, do not exceed 5 eV which confirms the semiconductor nature of our samples. The dielectric behavior was investigated as function of both frequency (1 kHz–1 MHz) and temperature (298–700 K), and the electrical response was investigated by impedance spectroscopy measurements.

我们报道了通过共沉淀法制备的镍取代锌纳米粒子的单相尖晶石的合成，结构，光学和介电性能。用X射线衍射（XRD）技术，红外分光光度计（FTIR），紫外-可见分光光度计和介电常数对样品进行了表征。X射线衍射分析表明锌含量的增加已经在晶粒尺寸和晶格参数上得到了体现。对于x从0.5到0.9变化，微晶尺寸和晶格参数系统地从83nm增加到130nm，从8.386nm增加到8.443埃。的FTIR分析显示两个吸收带中的400-540厘米的波数范围^-1。的UV-VIS分析显示，所估计的光学能带隙（E_克样品），通过利用Tauc曲线，不超过5 eV的这证实我们的样品的半导体性质。研究了介电特性随频率（1 kHz-1 MHz）和温度（298-700 K）的变化，并通过阻抗谱测量研究了电响应。