A comprehensive exploration of pure and Zn doped LaFeO₃ nanoparticles synthesized by solid state mechanism for charge storage devices

The present work examines the physical behaviors of pure and Zn-doped LaFeO₃ nanoparticles that are prepared by employing solid state reaction techniques. Powder X-ray diffraction (XRD) examinations on the pure and Zn-doped LaFeO₃ samples revealed an orthorhombic crystalline phase of the products. Various IR and Raman vibrational bands available in the obtained nanoproducts are discussed in detail. The optical band gap energy values of the prepared nanoparticles were estimated from Tauc’s plots and the values are found to be 2.06 and 1.98 eV respectively. The Scanning Electron Microscopy (SEM) test verifies the polycrystalline nature and spherical morphology of pure and Zn-doped LaFeO₃ nanoparticles. Electrochemical behavior of the obtained products is tested with a cyclic voltammeter (CV) with a potential window of 0.46 V. The specific capacitance value of pure LaFeO₃ nanoparticles is estimated to be 189 F/g at 1 A/g. However, the Zn doped LaFeO₃ nanoparticles have shown the improved specific capacitance, 216 F/g at 1 A/g.