Rietveld refinement, optical, dielectric and ac conductivity studies of Ba-doped SrSnO3

Kumar, Aditya; Khan, Bushra; Yadav, Varsha; Dixit, Ambesh; Kumar, Upendra; Singh, Manoj K.

doi:10.1007/s10854-020-04240-7

Cited by 29 publications

(17 citation statements)

References 42 publications

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“…The intercept and slope of the linear equation were used to compute the crystallite size and micro-strain in the sample, and the results are shown in Table 1. has been used for better determination of crystallite size and micro-strain of the samples [37].…”

Section: Crystallite Size and Micro-strain Analysismentioning

confidence: 99%

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Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol–gel method

Cheema

Yadav

Maurya

et al. 2021

J Mater Sci: Mater Electron

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Samples with doping of Mn (0, 2, and 4%) in ZnFe2O4 were prepared by sol-gel chemical route at 80 o C. X-ray powder diffraction and Raman spectrum analysis were used to determine the preliminary phase of obtained samples. W-H and SSP plots were used to determine the crystallite size and micro-strain of samples. Using zeta potential and scanning electron microscope, the surface charge and morphology of the prepared samples were studied. The optical bandgap of sample suggested that it was semiconducting.The dielectric characteristics of samples were examined as a function of temperature at various frequencies (1 KHz, 10 KHz, 100 KHz, and 1 MHz) (60-600 o C). Dielectric study revealed the presence of interfacial and orientational polarization, with dielectric constants and dissipation factors ranging from (0.7-460) to (0.3-0.8), remain thermally stability up to 300 o C. In samples ZF-0, ZF-2, and ZF-4, the thermal dependence of DC conductivity demonstrates Arrhenius transport with one, two, and three regions of conduction, respectively. The sources of charge carrier in samples were ⋅⋅ , ′ and dipole defects ( ⋅⋅ − 2 2+ 3+ ′ ) and (2 3+ 2+ . − 2 2+ 3+ ′ ). The current work could help identify possible applications in semiconductor devices, thermally stable capacitors, and as mixed ionic electronic conductors in solid oxide fuel cells.

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Section: Crystallite Size and Micro-strain Analysismentioning

confidence: 99%

“…-4 sample during structural analysis. As doping concentration increases, there is a possibility of overlapping between the conduction band and the defect energy level, resulting in a reduction of the optical bandgap[37,50]. The representation of the defect level, valence band and conduction band in energy level diagram is shown in Figure9(d).…”

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confidence: 99%

Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol–gel method

Cheema

Yadav

Maurya

et al. 2021

J Mater Sci: Mater Electron

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“…To determine the accurate value of crystallite size, separating the micro-strain value from the XRD peak is essential. A well-known relation was used to assess the micro-strain present in sample known as Williamson-Hall (W-H) plot described in literature [42] . According to this plot, the total width of XRD peak can be written as the sum of contribution arised due to smaller crystallite size ( ) and micro-strain ( ).…”

Section: Determination Of Crystallite Sizementioning

confidence: 99%

Structural, Optical and Electrical Properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 Synthesized using Sol-Gel Method

Kumar¹,

Khan²,

Singh³

et al. 2021

Adv. Mater. Lett.

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“…The activation energy for relaxation process ( . ) has been calculated using similar equation to Arrhenius equation that is given by [48];…”

Section: Electrical Properties Measurementmentioning

confidence: 99%

Studies on the structure, optical, ac conduction mechanism by OLPT model and impedance spectroscopy of La-doped Ba2SnO4 Ruddlesden Popper Oxide

Kumar

Maurya

Cheema

et al. 2021

Preprint

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The conventional ceramic route has been used to prepare the La-doped Ba2SnO4 samples by heat-treatment at 1000oC and sintered at 1250oC. The phase identification was carried out using XRD and found to be single phase up to 4 atoms %. The solubility of La at Ba-site were further reconfirmed using FTIR and Raman analysis. The AC conductivity spectra of all samples follow universal Johnscher’s power law; however, the thermal dependence of suggest Arrhenius type conduction within the sample. Further, the scaled conductivity and frequency at all temperatures superimposes on a single master curve, indicates the invariance of conduction mechanism. The impedance spectroscopy studies suggest the major contribution of grain in the conduction and relaxation. The present material could be potentially used in semiconductor device, UV-detector, and mixed ionic and electronic conductor (MIECs) by utilizing absorption states and thermo-curves as metastable state.

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Rietveld refinement, optical, dielectric and ac conductivity studies of Ba-doped SrSnO3

Cited by 29 publications

References 42 publications

Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol–gel method

Structural, optical and electrical properties of Mn-doped ZnFe2O4 synthesized using sol–gel method

Structural, Optical and Electrical Properties of CaSnO3 and Ca0.98Nd0.02Sn0.98Ti0.02O3 Synthesized using Sol-Gel Method

Studies on the structure, optical, ac conduction mechanism by OLPT model and impedance spectroscopy of La-doped Ba2SnO4 Ruddlesden Popper Oxide

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