The influence of the incorporation of Mn atoms in CdO nanoparticles on structural pathways, linear, and non-linear optical characteristics for optoelectronic devices
Abstract
The paper discusses the synthesis and characterization of Cd1−xMnxO nanoparticles using the precipitation method for potential optoelectronic applications. X-ray diffraction analysis revealed a cubic polycrystalline structure, with a decrease in crystallite size as Mn concentration increased. UV–Vis spectroscopy data showed changes in the band gap with varying Mn concentrations, with Eopt.g decreasing from 2.523eV to 2.304eV as Mn content increased up to 3%. However, with further increases in Mn content, Eopt.g increased to 2.332eV. The study also estimated various optical properties, providing valuable insights into the optical behavior of Cd1−xMnxO nanoparticles. In addition to the aforementioned characterizations, the paper explores the influence of Mn content on dispersion parameters using Wemple Di-Domenico models. The dispersion energy (Ed) was found to increase from 13.502eV to 14.170eV, while the single oscillator energy (Eo) decreased from 3.483eV to 3.142eV with increasing Mn content. This suggests that the incorporation of Mn into CdO alters its optical properties significantly. Furthermore, the study calculated non-linear optical coefficients, such as the third-order non-linear susceptibility (χ(3)) and non-linear refractive index (n2), for CdO nanostructured powder doped with Mn. These findings indicate the potential suitability of Cd1−xMnxO nanoparticles for applications in the fields of optics and electronic devices, highlighting their potential for use in advanced technologies requiring tailored optical properties and nonlinear behavior.
