Title:Ion Conducting Studies in PEO:NaI and its Composite: Carrier Density Approach
VOLUME: 14 ISSUE: 1
Author(s):Kushal Mehrotra, Divya Singh and Bhaskar Bhattacharya*
Affiliation:Department of Physics, MMV, Banaras Hindu University, Varanasi, Department of Physics, MMV, Banaras Hindu University, Varanasi, Department of Physics, MMV, Banaras Hindu University, Varanasi
Keywords:Polymer electrolyte, charge concentration, mobility, amorphicity, charge association, percolation
threshold.
Abstract:Background: The modulation in electrical conductivity of polymer electrolyte,
viz., polyethylene oxide (PEO) complexed with different concentrations of sodium iodide is
studied. The role of mobility and charge concentration in the electrical conductivity of polymer
electrolytes is established.
Methods: The complex impedance spectroscopy (CIS) method is used to measure the electrical
conductivity of film.
Results: The effect on charge concentration, mobility and conductivity of PEO+NaI film by
adding three different concentration of silicon is reported.
Conclusion: The polarized optical microscopy (POM) is used to study the morphology of
the surface of PEO, PEO+NaI films dispersed with Si.
