Conductivity Enhancement of PEMA Based Plasticized Polymer Electrolyte Using Cadmium Sulphide Nanofillers

In this research, new film of a free-standing electrolyte containing Poly (ethyl methacrylate) (PEMA), Ethylene carbonate (EC) blends as a host for the electrolyte which was doped with Sodium Iodide (NaI) as the dopant salt and CdS nanoparticles as nanofillers was successfully prepared by solution casting technique. The polymer electrolyte of PEMANaI-EC-CdS was characterized using impedance spectroscopy (EIS), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR). From the EIS results, it showed that electrolyte exhibited the highest ionic conductivity of 6.2×10-4Scm–1at the 9% concentration of CdS nano-particles. The ionic conductivity result was supported by the morphological studies which revealed some dark pores which indicates the material is amorphous at room temperature because of ethylene carbonate. The features of complexation of the electrolytes were studied by FTIR.