Abstract
Polycrystalline Li0.25Na0.75CdVO4 was synthesized via a solid-state technique under air atmosphere. It is found that X-ray diffraction peaks are listed as orthorhombic Na2CrO4 structure belonging to the space group Cmcm. Composition of elements was examined by energy dispersive X-ray analysis (EDX or EDS). Grains size and morphology of the present material were investigated by scanning electron microscopy (MEB) and atomic force microscopy (AFM). Electrical measurements were performed using complex impedance spectroscopy. Impedance curves confirm the presence of two contributions and an equivalent circuit was suggested. An electrical transport in the material as a thermally activated process has been achieved using DC conductivity. While; AC conductivity is analyzed by the non-overlapping small polar on tunneling (NSPT) conduction mechanism. Refractive index, extinction coefficient, and band gap energy were determined from ellipsometric measurements.
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