Structural and optical properties of a revived Pb0.5Ba1.5BiVO₆ perovskite oxide

Abstract

The polycrystalline ceramic Pb[Formula: see text]Ba[Formula: see text]BiVO6 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.

Effect of rGO with BaCuO3 perovskite on the thermal decomposition of AP and NTO

“…Thus, these special advanced materials have been used in various elds, in applications such as energy devices, drug delivery, catalysis, and many more. [16][17][18] Nowadays, the perovskite oxide BaCuO 3 is widely used due to its easy preparation, chemical stability, lower cost, and higher vibrational and electrical properties compared with other perovskite oxides. 19 Herein, a wet chemical method was used to prepare perovskite-structured transition metal doped oxide BaCuO 3 , while GO was reduced using an ultrasonication process.…”

“…Thus, these special advanced materials have been used in various fields, in applications such as energy devices, drug delivery, catalysis, and many more. 16–18 Nowadays, the perovskite oxide BaCuO 3 is widely used due to its easy preparation, chemical stability, lower cost, and higher vibrational and electrical properties compared with other perovskite oxides. 19…”