Open AccessStructural and optical properties of a revived Pb0.5Ba1.5BiVO6 perovskite oxide
Author(s) -
R. K. Parida,
Dillip Pattanayak,
Bhagyashree Mohanty,
B. N. Parida
Publication year - 2019
Publication title -
journal of advanced dielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 13
eISSN - 2010-135X
pISSN - 2010-1368
DOI - 10.1142/s2010135x19500048
Subject(s) - materials science , dielectric , raman spectroscopy , ceramic , perovskite (structure) , scanning electron microscope , analytical chemistry (journal) , crystallite , ferroelectricity , microstructure , powder diffraction , dissipation factor , photoluminescence , crystallography , optics , composite material , optoelectronics , metallurgy , chemistry , physics , chromatography
The polycrystalline ceramic Pb[Formula: see text]Ba[Formula: see text]BiVO 6 manifesting the complex double perovskite structure was tailored by the conventional solid state route at a moderate temperature. Qualitative phase analysis and formation of the ceramic were affirmed by XRD analysis. The X-ray powder diffraction pattern of the compound explored at room temperature affirms the single phase formation with double perovskite structure exhibiting rhombohedral phase. Microstructural analysis of the studied compound procured from the Scanning Electron Microscope (SEM) validates the formation of dense microstructures and nonuniformly distributed grains with minimal voids. Compositional analysis was shaped through the Electron Diffraction Spectroscopy (EDS) confirming the absence of contamination of any other metals apart from the mentioned ones. Dielectric (Cr and [Formula: see text]) parameters of the compound were studied using the LCR analyzer at different temperatures and wide range of frequencies. The polarization and dielectric study affirms the presence of ferroelectricity in the material with transition temperature much above the room temperature. The tangent dielectric loss of this sample being almost minimal at room temperature attributes it to find applications in different grounds of electronics. Optical equities of the ceramic were further analyzed by the RAMAN, FTIR, UV–Vis and Photoluminescence spectroscopy.