Highly stable dielectric frequency response of chemically synthesized Mn-substituted ZnFe2O4

Deep eutectic solvent mediated synthesis and fabrication of a WO3–MgO nanocomposite as an electrode material for energy storage applications

“…7c) gives a curve which decreases exponentially with a rise in temperature, showing that the sample is semiconducting at all studied temperatures. 35 The DC conductivity ( σ dc ) arises as a result of excitation of electrons from the localised state to the conduction band of the material 36 and the conduction obeys the Arrhenius equation given below:where σ 0 is a constant, k B is the Boltzmann constant and E a is the activation energy. The temperature dependent DC conductivity values and activation energy obtained by plotting ln σ dc vs .…”

Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol–gel method

“…According to the literature review including these two articles, the substitution of Mn at the Zn-site makes it more multifunctional than its solo phase. Sidra Zawar et al produced Mn-modified ZnFe2O4 by a wet chemical-based auto-combustion process, which they found useful in EM wave shielding [16]. Hema et al synthesized a solid solution of Zn1-xMnxFe2O4 using a simple one-pot microwave combustion process using urea as the fuel, which exhibits superparamagnetism within 0 ≤ ≤ 0.4 and ferromagnetism within 0.6 ≤ ≤ 1.0; it is also a suitable catalyst for the oxidation of benzyl alcohol into benzaldehyde [17].…”

Impact of (Zr, Cu) Ion Substitution on the Optical, Dielectric, and Impedance Behavior of BiFeO3

“…It can be seen from the figure that at lower frequency region, the resistivity decreases, and at higher frequency, the resistivity becomes almost independent of frequency. This reveals the semiconductor type behavior of BFO [49]. At lower frequencies, the mobile charges are less active and hence the hopping between ions is less.…”