Abstract
In this work, nanocomposite samples of polyaniline (PANI) and lead sulfide nanoparticles (PbSNPs) were prepared, utilizing the solution preparation method, for implantation in energy storage elements. The PANI/PbS films were irradiated by different fluences of oxygen beam: 5 x 10(16), 10 x 10(16), and 15 x 10(16) ions.cm(-2). The composite was investigated by XRD, SEM, DSC, and FTIR. After ion irradiation, the T-g and T-m values decreased by 4.8 degrees C and 10.1 degrees C, respectively. The conductivities, electrical impedances, and electrical moduli of untreated and irradiated samples were examined in frequencies ranging from 10(2) Hz to 5 MHz. Moreover, the ion beam caused a modification in the dielectric characteristics of PANI/PbS. The dielectric constant epsilon ' was improved from 31 to 611, and the electrical conductivity increased from 1.45 x 10(-3) S/cm to 25.9 x 10(-3) S/cm by enhancing the fluence to 15 x 10(16) ions.cm(-2). Additionally, the potential energy barrier, W-m, decreased from 0.43 eV to 0.23 eV. The induced changes in the dielectric properties and structural characteristics of the PANI/PbS samples were determined. These modifications provide an opportunity to use irradiated PANI/PbS samples for several applications, including microelectronics, batteries, and storage of electrical energy.