LAUSR

Abstract Nanostructured pure and TiO 2 doped CdOFePO 4 nanocomposites prepared using sol-gel method are analysed by using various characterization techniques such as powder X-ray diffraction (XRD), Scanning microscopy (SEM) with Energy dispersive X-ray diffraction spectroscopy (EDAX), Fourier transform infrared spectroscopy (FT-IR) spectroscopy, UV-visible absorption spectroscopy, Photoluminescence (PL) studies and Diffused reflectance spectroscopy (DRS) techniques respectively for structural and optical studies. The particle size in the nanometer range of 20-25nm is obtained from the XRD analysis. SEM illustrations reveal the morphological transformation with the increase in TiO 2 dopant concentration. The characteristic bands related to metal oxides and other organic molecules are evidenced from FT-IR spectra. UV-Visible absorption spectra are attributed to the tetragonal distorted crystal field. PL spectra show bands in visible spectra. The optical band gaps are calculated from diffused reflectance spectroscopy using Kubelka-Munk equation are varied between 1.96-2.52 eV indicating that synthesized nanocomposites act as semiconductors.