| Popis: |
Solid polymer blend electrolyte films of PEO/Na-CMC doped with NaI, were prepared by solution cast method and their structural, optical and electrical properties were investigated using X-Ray diffraction, Fourier transform infrared spectroscopy, UV-Vis spectrophotometer and Electrical impedance analyser respectively. X-Ray diffraction spectra indicate that, the deformation occurred in the structure of the blend followed by doping with NaI salt. The variation in intensity and shifting of characteristic bands in FTIR spectra provides the evidence for formation of complex due to the interaction occurred in the blend with the dopant. Optical energy band gap decreases in the blend samples upon doping and is confirmed by UV-Vis spectrophotometer analysis. Increase of Dielectric constant and loss upon doping, exhibits usual behaviour of the polymer electrolytes. The nature of increase in AC conductivity by doping and maximum conductivity obtained for 10/90 sample doped with 0.03% NaI indicates, the prepared sample can be used as polymer electrolytes in the manufacturing of energy storage devices. |
