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Effect of BaCl2 doping on structural and electrical properties of PEO based solid polymer electrolyte films

Author Affiliations

  • 1Department of Physics, Mangalore University, Mangalagangotri-574199, India
  • 2Department of Physics, Mangalore University, Mangalagangotri-574199, India
  • 3Department of Physics, Mangalore University, Mangalagangotri-574199, India
  • 4Department of Physics, Mangalore University, Mangalagangotri-574199, India
  • 5Department of Physics, KVG College of Engineering, Kurunjibhag, Sullia-574327, India

Res. J. Physical Sci., Volume 5, Issue (2), Pages 5-7, March,4 (2017)


BaCl2 doping on structural and electrical properties of Polyethylene Oxide (PEO) polymer electrolyte has studied using FTIR, XRD and conductivity measurements. Pure and doped polymer films were prepared by solution casting method. The chemical modifications within the film due to doping were examined by FTIR study and the result shows that the considerable changes in the doped films, indicates the interaction between dopant and polymer and formation of charge transfer complex (CTC). The XRD study shows the decrease in crystallinity by increase dopant concentration. This shows the presence of CTC modifies the structure of films. The DC conductivity studies show the enhancement of conductivity by increase in BaCl2 salt concentration. The increase in conductivity after 5 wt% (10-6Scm-1) has been understood by invoking the CTC behavior within the composite. Conductivity decreases on further addition of salt to PEO polymer electrolyte, which is may be due to the saturation of conducting charge motilities due to doping.


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