Magnesium doped copper chromites spinel nanoparticles (Cu_1−xMg_xCr₂O₄₎ where x = 0.2, 0.4, 0.6, and 0.8 is synthesized by sol-gel method and characterized by different techniques like EDS, SEM, Raman spectroscopy, and Photoluminense. Various parameters affecting the sample techniques like temperature and Concentrations. The crystal phase of CuCr₂O₄ is tetragonal having a space group is 121/amd. We calcined at 750 C temperature. Its lattice parameters are 6.0341 and 7.7888, which is very close to the reported ones. XRD tells us about the crystal size and dislocation density of samples. Four peaks observed in UV spectra of CuCr₂O₄ that occurs at different regions, bandgap obtained for the parent sample is 5.02 eV, and when we doped Magnesium then the bandgap changes and becomes 4.17 eV. Similarly, SEM results show that pure copper chromite structure is tetragonal and after doping the other compounds the structure changes according to characteristics of Nanoparticles. In PL spectra four peaks are obtained one at 347 nm, 380 nm, 500 nm and the other is at 600 nm. According to Raman, shift property two peaks are obtained with different wavelengths like 1306 cm⁻¹ and 1465 cm⁻¹. ED’s results clearly show that copper chromites Nanoparticles successfully synthesized and when we doped Magnesium in copper chromite, the best results are observed.

镁掺杂的亚铬酸铜尖晶石纳米粒子（Cu _1-x Mg _x Cr ₂ O _4），其中 x = 0.2、0.4、0.6 和 0.8 是通过溶胶-凝胶法合成的，并通过不同的技术（如 EDS、SEM、拉曼光谱和光致发光。影响样品技术的各种参数，如温度和浓度。CuCr ₂ O ₄的晶相是具有空间群为121/amd的四方晶相。我们在 750°C 的温度下煅烧。其晶格参数为 6.0341 和 7.7888，与报道的非常接近。XRD 告诉我们样品的晶体尺寸和位错密度。在 CuCr ₂ O _{4 的}紫外光谱中观察到四个峰这发生在不同的区域，母体样品获得的带隙为 5.02 eV，当我们掺杂镁时，带隙发生变化并变为 4.17 eV。同样，SEM结果表明纯亚铬酸铜结构为四方晶系，掺杂其他化合物后，结构根据纳米颗粒的特性发生变化。在 PL 光谱中获得了四个峰，一个在 347 nm、380 nm、500 nm，另一个在 600 nm。根据拉曼，在1306 cm ^-1和1465 cm ^-1等不同波长下获得了位移特性两个峰。ED 的结果清楚地表明亚铬酸铜纳米粒子成功合成，当我们在亚铬酸铜中掺杂镁时，观察到了最好的结果。