Frequency and temperature response based electrical properties of samarium modified bismuth ferrite-lead titanate material

Samal, Smrutipragnya; Biswal, Bijaylaxmi; Mallick, Manas Kumar; Choudhary, R. N. P.; Bhuyan, Satyanarayan

doi:10.1007/s10853-022-07254-0

Cited by 16 publications

(4 citation statements)

References 43 publications

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“…The curves obtained at various temperatures merge at higher frequencies and exhibit behavior that is independent of both frequency and temperature. This characteristic suggests that the space charges are relaxed at high frequencies and high temperatures 51 …”

Section: Resultsmentioning

confidence: 98%

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A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

Verma,

Tripathi,

Upadhyay

2024

Int J Applied Ceramic Tech

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In this work, perovskite oxide SrCeO3 was synthesized using the solution combustion method (SCM). Synthesized samples have been characterized using X‐ray diffraction (XRD), Raman, ultra violet (UV)–visible spectroscopy, and scanning electron microscopy (SEM) techniques. The XRD and Rietveld refinement has confirmed the orthorhombic structure with space group Pnma. The average grain size of this ceramic sample is 1.2 µm. The dielectric constant, dissipation factor, modulus, impedance, and alternating current (AC) and direct current (DC) conductivities were analyzed in the temperature range RT to 600°C and frequency range 20 Hz–2 MHz. Further, it was observed that the role of grain boundaries in dielectric and electrical properties is significant, at low temperatures. The origin of the dielectric relaxation and conduction process is the same. The activation energy for DC conduction (Edc) was found to be .79 eV. Electrical conduction/relaxation is assigned to the diffusion of doubly ionized oxygen (Vo··). The value of DC conductivity (1.2 × 10−3 Ω−1 cm−1 at 600°C) and activation energy of .79 eV is very close to the values reported for doped CeO2‐based oxide ion conductors for SOFCs. This study has demonstrated that SrCeO3 can be an alternative candidate for the oxide ion conductor electrolyte application and the potential to be used as a thermally stable capacitor application for microwave dielectric applications.

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Section: Resultsmentioning

confidence: 98%

“…This characteristic suggests that the space charges are relaxed at high frequencies and high temperatures. 51 The frequency variation of the complex impedance's imaginary component (Z) is shown in Figure 8B. Two peaks are shown in the plots, one in the high-frequency range and the other one in the low-frequency range.…”

Section: Complex Impedance Analysismentioning

confidence: 99%

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

Verma,

Tripathi,

Upadhyay

2024

Int J Applied Ceramic Tech

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“…Conductivity exhibits a significant increase at high frequencies, which may be due to the nanoparticles’ frequency-dependent ac conduction. 59 The variation of the dielectric constant ( ε r ) with frequency at different temperatures is illustrated in Fig. 11(a).…”

Section: Resultsmentioning

confidence: 99%

Rapid microwave-assisted synthesis and characterization of a novel CuCoTe nanocomposite material for optoelectronic and dielectric applications

Supriya,

Das,

Samal

et al. 2024

Nanoscale

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“…The space charges could not follow the field variation and thus dielectric relaxation happens which decreases the dielectric loss with an increase in frequency. [ 44 ] Figure 5d illustrates the dielectric loss factor versus temperature (25–500 °C) at varying frequencies ranging from 1 kHz to 1 MHz. The loss factor value remains almost constant with an increase in temperature up to 250 °C and then increases gradually, especially at lower frequencies.…”

Section: Resultsmentioning

confidence: 99%

Studies of Structural, Optical, and Electrical Properties of Eco‐Friendly Complex Ferroelectrics: BaTiO₃–Bi_0.5Na_0.5TiO₃

Sahu,

Choudhary,

Samal

2023

Physica Status Solidi (b)

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Some lead‐free complex compounds containing two perovskite compounds BaTiO3‐Bi0.5Na0.5TiO3 of a chemical composition (Ba(1‐x) Bix/2Nax/2)TiO3 (x=0, 0.05, 0.1, 0.15) were fabricated using a cost‐effective mixed oxide method. Synthesis and characterization (electrical, ferroelectric, and optical) of the above defined complex ferroelectrics have been reported in this article. Analysis of the X‐ray diffraction data/pattern reveals the formation of phase pure compounds with tetragonal symmetry. Determination of particle size was done using the Scherrer formula. Morphology study of sintered (at 1100 °C) pellets indicates that average grain size decreases with an increase in Bi/Na content of Bi0.5Na0.5TiO3. Studies of FTIR and UV‐VIS‐NIR spectroscopy reveal the type of chemical bonds present in the materials. The energy band gaps of the compounds are found to be suitable for optical device applications. The frequency and temperature dependence of the dielectric study reveals that the dielectric constant increases and loss tangent decreases with an increase in Bi/Na content of Bi0.5Na0.5TiO3. The analysis of the I‐V plot and the field dependent polarisation (PE hysteresis loop) provide the low leakage current and existence of ferroelectricity at room temperature respectively.This article is protected by copyright. All rights reserved.

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Frequency and temperature response based electrical properties of samarium modified bismuth ferrite-lead titanate material

Cited by 16 publications

References 43 publications

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

Rapid microwave-assisted synthesis and characterization of a novel CuCoTe nanocomposite material for optoelectronic and dielectric applications

Studies of Structural, Optical, and Electrical Properties of Eco‐Friendly Complex Ferroelectrics: BaTiO₃–Bi_0.5Na_0.5TiO₃

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Frequency and temperature response based electrical properties of samarium modified bismuth ferrite-lead titanate material

Cited by 16 publications

References 43 publications

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO3 synthesized by the combustion method

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO3 synthesized by the combustion method

Rapid microwave-assisted synthesis and characterization of a novel CuCoTe nanocomposite material for optoelectronic and dielectric applications

Studies of Structural, Optical, and Electrical Properties of Eco‐Friendly Complex Ferroelectrics: BaTiO3–Bi0.5Na0.5TiO3

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Product

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A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

A comprehensive study of dielectric, modulus, impedance, and conductivity of SrCeO₃ synthesized by the combustion method

Studies of Structural, Optical, and Electrical Properties of Eco‐Friendly Complex Ferroelectrics: BaTiO₃–Bi_0.5Na_0.5TiO₃