In the present report, optical and Raman spectral properties were extensively studied. Ni-doped CuO nanoparticles were prepared using the sol–gel method. X-ray diffraction patterns confirm that the prepared particles have the space group of C_2h⁶ with monoclinic structure. Optical studies show that there is a broad absorption spectrum in the whole visible regime due to surface plasmon oscillations (SPR). Raman spectral measurements taken using 532 nm excitation found that three Raman peaks centred at 276 cm⁻¹ (A_g), 330 cm⁻¹ (B_g) and 616 cm⁻¹ (B_g), respectively. Doping of Ni ions shows a redshift in Raman peak position. In the present work, the influence of Ni doping on electron–phonon coupling and phonon lifetimes has been studied extensively.

在本报告中，对光学和拉曼光谱特性进行了广泛的研究。镍掺杂的CuO纳米颗粒是使用溶胶-凝胶法制备的。X射线衍射图证实，所制备的颗粒具有具有单斜晶结构的C _2h ⁶的空间群。光学研究表明，由于表面等离激元振荡（SPR），在整个可见光范围内都有较宽的吸收光谱。使用532 nm激发进行的拉曼光谱测量发现三个拉曼峰分别位于276 cm ^-1（A _g），330 cm ^-1（B _g）和616 cm ^-1（B _g）， 分别。镍离子的掺杂显示拉曼峰位置发生红移。在目前的工作中，已广泛研究了Ni掺杂对电子-声子耦合和声子寿命的影响。