Ionic conductivity and interfacial interaction in penton/AgI composites

New nanostructured composite system (1???x)penton/xAgI (where 0?< x?<?1) was synthesized by a solution-based technique, which involves the process of modification of polymer surface. Samples of the composite system were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and electrical impedance spectroscopy. It was shown that AgI nanoparticles form a continuous layer at the surface of penton particles and consist mainly of cubic γ-phase with a small amount of hexagonal β-phase. Maximum conductivity enhancement at almost one order of magnitude higher compared to the pristine AgI has been observed for the sample with x?=?0.5. The overall activation energy for conduction varies from 0.23 to 0.38 eV, depending on the content of γ-phase of silver iodide in the samples. Two percolation thresholds has been also recorded at the points x?=?0.1 and x?=?0.3.