X-ray diffraction (XRD), dielectric constant (ɛ′), loss factor (ɛ″), and ac conductivity (σac) of pure LaCl3-doped polyvinylidene fluoride (PVDF) have been carried out. The properties studied in the temperature frequency ranges; 140–450 K 0.1−1000 kHz, respectively. XRD results reveal that LaCl3-PVDF samples are α-phase. incorporation La3+ ions within PVDF polymer matrix forms complexes which reduce order structure PVDF. Three relaxation processes, namely; ρ, αa, αc were observed for first...

Presence of excitons significantly influence the optoelectronic properties and potential applications materials. Using combined theoretical experimental tools, we investigate absorption spectra $d^0$ double perovskite oxides Ba$_{2}$Y$B'$O$_6$ ($B'$ = Nb, Ta, Sb), Ba$_{2}$Sc$B'$O$_6$ Sb) $A_{2}$ScSbO$_6$ ($A$=Ca, Sr, Ba), allowing for a systematic variation composition. We not only show that low-energy are present in visible range {\it all} considered so-called wide-gap insulators, but also...

Titanium ferrite magnetic nanomaterials are synthesized by one-step, one pot, and scalable method assisted microwave radiation. Effects of titanium content exposure time on size, shape, morphology, yield, bonding nature, crystalline structure, properties studied. As-synthesized characterized X-ray diffraction (XRD), ultraviolet-visible absorption spectroscopy (UV-Vis), attenuated total reflectance Fourier transform infrared (ATR-FTIR), Raman spectroscopy, transmission electron microscopy...

Ba(Fe$_{1/2}$Nb$_{1/2}$)O$_3$ (BFN) ceramics are considered to be promising for technological applications owing their high dielectric constant over a wide range of temperatures. However, there exists considerable discrepancy the structural details. We address this through combined x-ray diffraction at room temperature and neutron powder measurements in from 5K up temperature, supplemented by comparative analysis earlier reported structures. Our study reveals cubic structure with space group...

A remarkably high value of specific capacitance 450 F/g is observed through electrochemical measurements in the electrode made multiferroic Bismuth Ferrite (BFO) form nanorods protruding out. These were developed on porous Anodised Alumina (AAO) templates using wet chemical technique. Diameters are range 20–100 nm. The attributed to nanostructure. capacitances constant after several cycles charge-discharge.

Ba2ScSbO6 (BSS) has been synthesized in polycrystalline form by solid state reaction. Structural characterization of the compound was done through X-ray diffraction (XRD) followed Riedvelt analysis XRD pattern. The crystal structure is cubic, space group Fm-3m (No. 225. Optical band-gap present system calculated using UV-Vis Spectroscopy to be 4.2eV. A detailed study electronic properties also carried out Full-Potential Linear Augmented Plane Wave (FPLAPW) as implemented WIEN2k. BSS found a...

Structural and Optical properties of the (Na0.5 K0.5)y Li 1-y NbO3 (y = 0.934 & 0.936) ceramics have been explored in terms X-Ray diffraction patters, Rietveld analysis, UV-Vis spectroscopy, Kubelka-Munk functions. analysis both these structures reveals them to be tetragonal with space group P4mm. It is found that increase doping increases optical band gap. Presence additional hardening dopant MnO2 a uniform behavior for composition. With increasing concentration, gap decreases indicative...

Ba2CoWO6 (BCoW) has been synthesized in polycrystalline form by solid state reaction at 1200C. Structural characterization of the compound was done through X-ray diffraction (XRD) followed Rietveld analysis XRD pattern. The crystal structure is cubic, space group Fm-3m (No 225) with lattice parameter, a=8.210A. Optical band-gap present system calculated using UV-Vis Spectroscopy and Kubelka-Munk function, its value being 2.45 eV. A detailed study electronic properties also carried out...

First principle study of the electronic band structure Ba2DySbO6 synthesied by solid state reaction technique have been performed within framework density function theory using WIEN2K. It has shown in absence electron-electron interaction (U=0), BaDySO6 behaves like a half-metal. Even presence DFT+U, via Hubbard term (from U = 0, 2.72e -7.02eV), it still shows half metals.

The density functional theory with generalized gradient approximation has been used to investigate the electronic structure of double perovskite oxide Ba2YSbO6 (BYS) synthesized in polycrystalline form by solid state reaction. Structural characterization compound was done through X-ray diffraction (XRD) followed Riedvelt analysis XRD pattern. crystal is cubic, space group being Fm-3m (No. 225) lattice parameter, a = 8.424 Ǻ. Optical band-gap this system calculated using UV-Vis Spectroscopy...

The intrinsically conducting polymer, polyaniline (PANI) has been synthesized by chemical polymerization process with the help of water‐soluble support polymer acrylamide (AAm). dielectric measurement PANI‐PAAm was measured in temperature range from 303–393 K at frequency 10 kHz. dependent data analyzed framework permittivity, loss tangent and ac conductivity. weak temperatures dependence (below 340 K) is seen, which an interesting property respect to technological applications as...

First Principles study of the electronic properties recently synthesized double perovskite Sr2ScSbO6 have been performed using density functional theory. With increasing temperature, Sr compound undergoes three structural phase transitions at 400K, 550K and 650K approximately, leading to following sequence phases: P21/n → I2/m I4/m Fm-3m. Starting from monoclinic room resulting Sc/Sb ordering, structure for tetragonal 613K cubic Fm-3m T≥660K has studied in terms states band-structure....

Significantly high value of polarization is obtained in multiferroic Bismuth Ferrite (BFO) form nanorods protruding out. These were developed on porous Anodised Alumina (AAO) templates using wet chemical technique. Diameters vary the range from 10–100 nm. The attributed to nanostructure. There no leakage current P-E loop observed at various fields and frequencies.

A remarkably high value of specific capacitance 450 F/g has been observed through electrochemical measurements in the electrode made multiferroic Bismuth Ferrite (BFO) form nanorods protruding out. These BFO were developed on porous Anodised Alumina (AAO) templates using wet chemical technique. Diameters range 20-100 nm. The is attributed to nanostructure. active surface charge evaluated electrochemically by cyclic voltammetry (CV) at different scanning rates and charge-discharge studies....