Effect of acceptor Na1+ doping on the properties of perovskite SrCeO3

Yadav, Dharmendra Kumar; Kumar, Upendra; Nirala, Gurudeo; Mall, Ashish Kumar; Upadhyay, Shail

doi:10.1007/s10854-019-01963-0

Cited by 19 publications

(5 citation statements)

References 33 publications

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“…Both peaks are found to be nearly equidistant in both plots, such as respectively. Each reaction peak present in each curve reflects the mobility of different charge carriers in the sample on application of smaller a.c. field on pellets [55]. Further, it has been noticed that the dielectric constant and dissipation factor were found to be stable up to 300 o C that makes it a suitable candidate for thermally stable capacitor application.…”

Section: Dielectric and Dissipation Factor Study Of Sintered Pelletsmentioning

confidence: 98%

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: Dielectric and Dissipation Factor Study Of Sintered Pelletsmentioning

confidence: 98%

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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“…Scherrer's eqn (1) considers only the effect of crystallite size on the peak broadening, but not the effect of strain due to point defects and/or grain boundaries. 20 However, using size strain analysis 21 the effect of both the crystallite size ( D ) and microstrain ( ε ) on the isotropic peak broadening can be considered: 20 …”

Section: Resultsmentioning

confidence: 99%

Spray pyrolysis-derived robust ferroelectric BiFeO₃ thin films

Nagashree,

Kulkarni,

Rajendra

et al. 2023

Phys. Chem. Chem. Phys.

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“…In the last two decades many researchers have focused their attention on synthesizing [46]. Moreover, sensitivity of Raman spectroscopy is higher than the conventional XRD technique.…”

Section: Raman Spectrum Analysismentioning

confidence: 99%

“…) which corresponds to SrCeO 3 phase[46]. From the analysis of XRD results it has become clear that in the composition with x=0.10 (S2CN10) most of the Na 1+ ions occupy Sr 2+ sites.…”

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confidence: 99%

Investigation on Structural and Optical Properties of Sodium ion (Na+) Doped Layered Perovskite Sr2CeO4

Yadav

Nirala

Kumar

et al. 2020

Preprint

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Powder and ceramic of a few compositions of system Sr2Ce1-xNaxO4 (x=0, 0.02, 0.04, 0.06 and 0.10) were prepared by the conventional solid-state reaction method. The phase and structure of the synthesized samples were investigated by x-ray diffraction technique. The analysis of XRD data indicated that in Sr2CeO4, substitution sites of Na1+ ions depend on the doping concentration. Na1+ ions occupy Ce-sites when concentration is x = 0.02. With increasing doping amount (x=0.04, 0.06 and 0.10) Na1+ substituted into both Sr and Ce site. Purity of the synthesized samples was reconfirmed using Raman and Fourier Transformation Infrared (FTIR) spectroscopy techniques. The optical band gap was recorded by UV-Vis absorption spectra; optical band gap energy of the samples lies between 2.91 - 3.10 eV. Room temperature photoluminescence (PL) measurements show that there two excitation peaks located around 290 nm and 350 nm. For Na doped samples, intensity of higher wavelength peak is more than the lower wavelength peak making them suitable candidate for UV excitation source. All the Na1+ doped samples display an intense blue emission at 472 nm similar to undoped Sr2CeO4. But the intensity of emission for the doped samples is weak as compared to undoped sample. Scanning electron microscopic studies of fractured surfaces of the sintered pellets have indicated that dopant Na has played a significant role in the grain growth. Grain size and morphology of Na doped samples are different from undoped Sr2CeO4.

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Effect of acceptor Na1+ doping on the properties of perovskite SrCeO3

Cited by 19 publications

References 33 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

Spray pyrolysis-derived robust ferroelectric BiFeO₃ thin films

Investigation on Structural and Optical Properties of Sodium ion (Na+) Doped Layered Perovskite Sr2CeO4

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Effect of acceptor Na1+ doping on the properties of perovskite SrCeO3

Cited by 19 publications

References 33 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

Spray pyrolysis-derived robust ferroelectric BiFeO3 thin films

Investigation on Structural and Optical Properties of Sodium ion (Na+) Doped Layered Perovskite Sr2CeO4

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Product

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Spray pyrolysis-derived robust ferroelectric BiFeO₃ thin films