Structural and optical properties of microwave assisted CdO-NiO nanocomposite

CdO-NiO nanocomposite was prepared by microwave assisted method and characterized by XRD, SEM and FTIR. It exhibits cubic structure with an average crystallite size of 45 nm (CdO), 25 nm (NiO) and 30 nm (CdO-NiO). The average dislocation density (δ) is 4.938 ×1014 lines/m2 (CdO), 16.0 ×1014 lines/m2 (NiO) and 11.11 ×1014 lines/m2 (CdO-NiO). From the UV – Vis spectra, the optical energy band gap is estimated as 2.35 eV (CdO), 3.85 eV (NiO) and 3.75 eV (CdO-NiO).