Investigations on structural, optical and electrical properties of V2O5 nanoparticles

In present communication, structural, optical and electrical properties of nanostructured vanadium pentoxide (V2O5) have been investigated. UV–Visible spectroscopy measurements were carried out in order to investigate the optical properties of as grown V2O5 samples. UV–Visible absorption spectrum shows a shifting in absorption peak towards lower wavelength from pure to different concentrated as grown samples. Value of optical band–gap (Eg), estimated from optical measurements, increases from 2.89 to 3.38eV with increase in concentration. Nanostructured V2O5 samples were synthesized using cost effective sol–gel method and final product was sintered at different temperatures. X–ray diffraction (XRD) measurement was performed to investigate the structural phases present which revealing the single phasic nature with orthorhombic structure. Crystallite size (CS), calculated using Scherer’s formula, is found to be ∼ 38.13 for 500°C sintered sample which increases to ∼ 51.31nm for higher temperature sintered sam...