Study of FT-IR spectrums of barium zirconate titanate synthesized via sol-gel auto combustion method

Shukla, Jyoti; Khan, Mehjabeen; Bisen, Supriya; Mishra, Ashutosh

doi:10.1063/1.5098682

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…The ionic radius of Zr 4+ is 0.087 nm which is larger than that of Ti 4+ (0.068 nm). Then, the host lattice would undergo expansion during the doping process because of the substitution of Zr 4+ ions in place of Ti 4+ ions [7,13]. As a result of this occurrence, the lattice parameter and cell volume would expand that further rises the d-spacing and makes the 2θ diffraction angles shift to the lower angle because as written on the Bragg's Law (λ⁄2d=sin2θ), the 2θ angle is inversely proportional with the d-spacing while the d-spacing is proportional with the lattice a b c. [16].…”

Section: Resultsmentioning

confidence: 99%

“…Isovalent dopants, particularly, such as Zr 4+ are often entered into the BT structure (then known as BaZrxTi1-xO3 or BZT) to lower the Tc below room temperature [2,6,7]. Additionally, the permittivity or dielectric constant of BT can be improved by introducing Zr 4+ dopant in the Ti 4+ site [6].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, among different oxide perovskites, the optical properties and photoluminescence features of BZT are very intriguing to the scientific community [7,12,13]. The BZT possesses a contribution to the development of numerous microelectronic, optoelectronic, and energy conversion devices [2,6,10,14,15].…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Sandi

Iriani

Fasquelle

2022

KEM

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The thin films of Zr co-doped BT (BZT) with the Zr concentrations of 0, 3%, and 5% have been deposited on the quartz substrates via the sol-gel technique with a spin coater. The microstructure and optical properties of the samples were identified by XRD and UV-Vis Spectrophotometer to investigate the properties influenced by the Zr number modification. The XRD patterns exhibited that the samples were a single-phase tetragonal structure and a shift of (101) peak was observed toward a lower angle with increasing Zr content confirming an enlargement in the lattice parameter and cell volume of the samples. On the other hand, the lattice strain and crystallite sizes reduce together with more Zr content. The optical properties examination demonstrated that the BT and BZT samples were highly transparent (~70-80%) in the visible wavelength and the absorption edges exchanged toward a lower wavelength due to the Zr doping particularly on the BZT5. The refractive index values were high categorized at ~ 4, 3.5, and 3.3 for BT, BZT3, and BZT5, respectively. Moreover, BZT possesses the lowest bandgap (3.57 eV) followed by BT (3.61) and BZT5 (3.72 eV)

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Sandi

Iriani

Fasquelle

2022

KEM

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“…The single-phase structure of the samples was confirmed by x-ray diffraction (XRD) patterns. The presence of different optical band gap values for different samples was recorded in UV-vis's absorption spectra, and these values are decreasing as the concentration of Zr increases [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrostatic pressure on structural and opto-electronic properties for barium based oxide perovskite

2022

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In this study, the effects of hydrostatic pressure ranges from 0 Gpa to 20 Gpa on detailed pressure induced computations of Barium Zirconate BaZrO3, including initial geometry optimization, energy minimization calculations, total energy values, lattice parameters, energy band gaps (Eg), optical and elastic constants are reported. All subjected computational results are collected by applying Local Density Approximation functional proposed by Ceperley-Alder and reformulated by Perdew-Zunger (LDA-CAPZ) using Cambridge Serial Total Energy Package (CASTEP) module under the formulation of Density Function Theory (DFT). The reduced nature of cell volume as well as lattice constants confirm the structural compressibility of BaZrO3 under the application of applied pressure. Increasing bulk modulus values indicate maximum structural stiffness of BaZrO3 under applied pressure. The collected values are compared with available theoretical and experimental parameters. The investigated band structures predict direct bandgap of BaZrO3, that increase under the influence of applied pressure which tend to increase all optoelectronic behavior. So, the current investigation signifies, that these calculations provide a baseline for new researchers to establish further pressure investigations and could be helpful for the uses of BaZrO3 in optoelectronic applications.

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Study of FT-IR spectrums of barium zirconate titanate synthesized via sol-gel auto combustion method

Cited by 2 publications

References 7 publications

Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Effect of hydrostatic pressure on structural and opto-electronic properties for barium based oxide perovskite

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