Study of electrical properties of cobalt oxide-doped sodium meta vanadate at different frequencies

The samples were prepared within the binary system NaVO(3)–Co(3)O(4) at different molar percentages depending on the ceramic method according to ((x))NaVO(3)−((100-x))Co(3)O(4), for the molar percentages (x = 5, 10, 25, 40, 60, 75, 80) mole%. The prepared samples were studied using X-rays diffraction (XRD), and their electrical properties were studied using LCR meter, such as the specific electrical resistivity ρ, electrical capacitance C, relative dielectric constant Ԑ(r,) and loss tangent tanδ within the frequency range (10Hz-MHz). The results showed that the resistivity values of all the prepared samples increased, and the highest value is 2.91 × 10(+07) (Ω.cm), in addition to the increase in the values of electrical capacitance and the highest value is 9.05 pF, the highest value of the relative dielectric constant is 28.39, and the highest value of the loss tangent is 7.01 × 10(−2), with the change in the molar percentage of sodium meta vanadate in the samples.