Structural, surface morphology, impedance spectroscopy, and electrical properties of (Sr_0.5W_0.5)(Pb_0.5Ni_0.5)O₃ electronic material

Using the mixed oxide reaction method at a calcination temperature of 850 °C, the modified perovskite compound (Sr_0.5W_0.5)(Pb_0.5Ni_0.5)O₃ , or (SWPN), has been processed and synthesized. Numerous efforts have been made to characterize its structure, morphology, impedance, and electricity in order to explore more about its potential applications in field of sensors and electronics. The tetragonal structure is ascertained from the room-temperature X-ray diffraction. We analysed its dielectric properties, conductivity, and impedance spectroscopy from 25 to 500 °C and 10 kilohertz to 1 megahertz. A single semicircular arc representing the grain's contribution to the sample has been observed in the Nyquist plot. A replica circuit was constructed to study its electrical characteristics. Experiments show that, between 400 and 500 °C, the activation energy of electrical conductivity ranged from 0.534 to 0.615 eV. Dielectric characteristics at high temperatures are studied systematically to acquire more about the electrical dependence of surfaces, grains, and grain borders. Short- and long-range ordering in the charge transporters of this chemical have been confirmed by tests of complex modulus and impedance. The non-Debye relaxation is represented by the complex modulus. Both essential characterization and device fabrication necessitate this sort of research. The composite's non-Debye relaxation is supported by its electric modulus properties. (author)