Fourier Transform Infrared and Electron Paramagnetic Resonance Spectral Studies of V2O5 Ion Doped Zinc –Lead- Lithium- Phosphate (ZNPBLI) Glasses

Abstract

            A glass composition (P_2­O₅)₆₅ – (Pb₃O₄)₁₀ – (ZnO)_5­­– (Li₂CO₃)_20-x - (V₂O₅)_xwhere x = 0, 0.2, 0.4, 0.6, 0.8 and 1 mol % is used to prepare vanadium ion  dopedZnPbLiPglass samples V0 to V5 by  melt quench technique method. The glass samples are non crystalline in nature, which is confirmedthrough X-ray diffraction. The physical properties like density and refractive index values are evaluated by using the Archimedes method and   Abbe’s Refract meter. The prepared glass samples are having different physical property valueswhen compared toother phosphate glasses and the values are found to be varied with respect to their composition.  Fourier transform infrared (FT-IR) spectra exhibits few sharp and broad  absorption bands  which attributes to P-O-V bonds harmonicat 467cm^-1,P-O-P symmetric stretches  at 781 cm^-1 and  P-O-P asymmetric stretches  at 880 cm^-1vibrations.  Electron paramagnetic Resonance (EPR) spectra exhibits resonance signal at g~4.6612 and ~1.9603due to coupled pairs and Free State of vanadium ions. It is evident from the Spin- Hamiltonian Parameters (SHP) that the Vanadium ions are available in the sites ofoctahedral with tetrahedral composition and which is a part of o C_4vsymmetry. These studies will be helpful in understanding optical and dielectric properties of the prepared glasses.