Band gap energy calculation of Cobalt doped Bismuth Ferrite Nanoparticles

Cobalt doped Bismuth Ferrite Nanoparticles [BiFe1-xCoxO3], where x = 0.00, 0.01, 0.03, 0.05 and 0.07 were synthesized by ethylene glycol- based sol-gel technique and annealed at relatively low temperature of 550 degrees C. XRD confirmed the phase pure formation of pristine BiFeO3, and cobalt doped BiFeO3 samples. The crystallite sizes as determined by Scherrer equation were found to be 46 nm, 50 nm, 48 nm, 45 nm and 43 nm for 0%, 1%, 3%, 5% and 7% cobalt doped Bismuth ferrite nanoparticles respectively. The Absorption spectra was performed by Uv Visible Spectroscopy. Band gap energy was calculated by Tauc Equation. Band Gap energy was enhanced by increasing doping concentration of Cobalt. (C) 2020 Elsevier Ltd. All rights reserved.