Investigation of electronic polarization – AC and DC conductivities of CeO2/MnO2 nanocomposite

Abstract

The dielectric response of CeO2/MnO2 powder particle was investigated and synthesized by using hydrothermal method. X-ray diffractometer analysis helps us to determine cubic structure with average crystallite size 11.39 nm. The peak position and its correlation with transmission electron microscopy was reported here. This study's diffusive reflectance spectrum shows the particular surface area and band gap of our material was calculated as 3.78 eV. The hydrothermal process was used to make this nanocomposite. As a result, the size of its crystallites matches morphological studies of pictures produced by scanning electron microscopy quite well. The association between dielectric loss and its conductivity is reported. These findings suggest that the dielectric constant is high due to crystallite size and the participation of nancomposites. The produced composite's dielectric studies were well matched using the Maxwell-Wagner method. In lower temperatures, the manufactured composite produced significant results.

Keywords

• CeO2/MnO2
• Nanocomposite
• Dielectrics
• Maxwell-Wagner method
• Rietveld analysis