Abstract
The study investigates the influence of cobalt doping on the structural and dielectric properties of NiWO4. Pristine and Co-doped nickel tungstate samples are synthesized via the direct chemical precipitation method. X-ray diffractogram is employed to analyze the structural variations introduced by doping. The impact of doping on dielectric properties is analyzed by examining the frequency response curves of the dielectric constant's real part and the loss tangent. Nyquist curves are used to study the relaxation process and the conduction mechanism taking place within pure and doped samples. An equivalent circuit is formulated and analyzed based on impedance spectroscopy to examine the physical processes occurring within the pure and doped samples. The introduction of cobalt dopants in the lattice of nickel tungstate results in a change in the conduction mechanism of nickel tungstate, leading to higher conductivity in the Co-doped nickel tungstate samples. Co-doping improves the electrical properties and conductivity of nickel tungstate and makes it a promising candidate in microelectronic devices.[copyright information to be updated in production process]
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