Open AccessInvestigation of structural, morphology, optical properties and electrical transport conduction of Li0.25Na0.75CdVO4 compound
Author(s) -
M. Enneffatia,
Mohammed Rasheed,
B. Louatia,
K. Guidaraa,
Suha Shihab,
Régis Barille
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1795/1/012050
Subject(s) - materials science , analytical chemistry (journal) , band gap , scanning electron microscope , electrical resistivity and conductivity , orthorhombic crystal system , crystallite , dielectric spectroscopy , conductivity , refractive index , spectroscopy , chemistry , crystallography , crystal structure , optoelectronics , electrochemistry , composite material , electrode , physics , chromatography , quantum mechanics , electrical engineering , metallurgy , engineering
Polycrystalline Li 0.25 Na 0.75 CdVO 4 was synthesized via a solid-state technique under air atmosphere. It is found that X-ray diffraction peaks are listed as orthorhombic Na 2 CrO 4 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.