Effect of magnetic ion, Fe3+ on the structural and dielectric properties of Oxychloro Bismuth Borate Glasses

Malik, Meena; Dagar, Sunita; Hooda, Ashima; Agarwal, Ashish; Khasa, Satish

doi:10.1016/j.solidstatesciences.2020.106491

Cited by 31 publications

(9 citation statements)

References 34 publications

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“…With the increase of frequency loss tangent value decreases, may be due to non-synchronization of hopping frequency with frequency of applied field. The loss tangent shows a significant increase increase of temperature at lower frequency range might be due to dominance of dipolar and interfacial polarization in this frequency range 14,32 . It was observed that the as prepared glass sample have quite lower value of loss tangent in comparison to conventional glasses.…”

Section: Uv-vis Nir Spectroscopymentioning

confidence: 91%

“…The conductivity is almost independent of frequency (forming plateau region (σdc)) in lower frequency range, this possibly due to space charge polarisation (which act as bulk resistance). The values of ac conductivity for as-prepared glass sample was calculated using the relation as discussed in literature 14,33,34 . The value of ac conductivity (σac) rises with rise of temperature, this might be due to thermally activated charge carriers 14 .…”

Section: Uv-vis Nir Spectroscopymentioning

confidence: 99%

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Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Attri¹,

Khasa²

2022

ECS Trans.

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A Glass composition 25BaO-30B2O3-45Bi2O3 was synthesized using melt quench technique. The structural, optical, electrical and thermal behaviour of prepared glass sample was investigated using X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) Spectroscopy, UV-Vis NIR, Impedance spectroscopy and Differential Thermal Analysis (DTA) respectively. XRD pattern of annealed glass sample, matched with diffraction profile of Bi45BO69 crystallite with size 49.83 nm. Optical parameters such as cut-off wavelength, bandgap, urbach energy and the refractive index were also calculated using UV-Vis absorption spectra for both samples. Dielectric parameters such as dielectric constant (ε’), dielectric loss (ε”), a.c. conductivity (σac) and loss tangent (tanδ) were also calculated for as prepared glass sample. The DTA curve shows crystallization ability and thermal stability of glassy sample. The synthesized composition was found to be promising material for applications like opto-electronic and energy storing devices, which enhance industry, innovation and infrastructure and ultimately enrich the sustainable cities and communities.

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Section: Uv-vis Nir Spectroscopymentioning

confidence: 91%

Section: Uv-vis Nir Spectroscopymentioning

confidence: 99%

Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Attri¹,

Khasa²

2022

ECS Trans.

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“…where P determines the resistive, Warburg impedance, capacitive, or inductance components depending on the values of n which may be 0, 0.5, 1, and −1 respectively [79,80]. The inset table of figure 14(c) presents the values of P and n for the fitted circuit.…”

Section: Impedance Analysismentioning

confidence: 99%

Thermogravimetric and temperature-dependent electrical investigations of Pr³⁺ doped multi-component silicate glasses for microelectronic technology

2024

Phys. Scr.

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Multi-component silicate glasses doped with 0, 0.5, 1, and 1.5 mol% of praseodymium (Pr3+) were synthesized by the sol-gel method. Thermal analysis of the glasses, evinced a high working temperature of 351 °C and Hruby coefficient, KH = 1.415 in the highly doped system, corroborating the effective role of Pr3+ ions in endowing superior thermal stability to the glass. Broadband dielectric spectroscopy was applied to study the temperature-dependent electrical behavior of the glasses for their suitability as electrodes and solid electrolyte materials in batteries. A high dielectric constant of 4797 was evidenced at 1 kHz when recorded at 473 K. The AC conductivity of the glass doped with 1 mol% was observed to be the highest with 94.8 x 10-5 S/cm at 10 MHz and 473 K. Jonscher’s power law exponent decreased with temperature, attributing the conducting mechanism to the Correlated Barrier Hopping (CBH) model. The Nyquist impedance spectra demonstrated a depressed semicircle with a spur at the low-frequency end, validating the non-Debye relaxation in the glasses. The equivalent circuitry of the plot predicted parallel combinations of resistor and constant phase elements which reflects a Warburg diffusion and capacitive approach. Bode’s phasor diagram confirmed the capacitive nature by a phase angle of -90 ° in all the glasses. While a uniform increase in dielectric constant and conductivity was observed up to 1 mol% of Pr3+, a sharp decline in the electrical phenomenon was observed with 1.5 mol% of Pr3+, due to the possible blockade of the hopping of charge carriers by the largely quantified dopant ions. Extracting a high dielectric constant, and ionic conductivity at high frequencies, with an optimal dopant concentration of 1 mol% Pr3+, the composite glasses could be considered for their potential use in integrated microcomponent storage devices as cathode and solid electrolyte materials.

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“…UV-Visible spectroscopy was done by Diffuse Reflectance Technique. Kubelka and Munk equation to convert reflectance data into absorption is given below [13]:…”

Section: Uv Visiblementioning

confidence: 99%

A Comparative Analysis of Structural, Optical and Electrical Properties of Polyaniline/Ferrite (Co, Ni, Cu, Zn) Composite

Sehrawat¹,

Saini²,

Bhankhar³

et al. 2022

ECS Trans.

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In this study, PANI, PANI/MFe2O4 (M = Co, Ni, Cu, and Zn) composites were studied. Polyaniline and their composites with ferrites were prepared via chemical oxidation method. Ferrites were synthesized through co-precipitation method. Structural properties were investigated using X-Ray diffraction spectroscopy (XRD) and Fourier Transform Infrared spectroscopy (FTIR) respectively. Pure ferrites were found to be of crystalline nature, whereas composites are found to be semi crystalline in nature. Scanning electron microscope (SEM) analysis confirmed the formation of all the synthesized composites. The optical band gap of composites is reducing as compared to Pure PANI (1.7 eV), which is in agreement with already reported work. The inclusions of ferrites particles have caused an enhancement in electrical conductivity of pure PANI. Conduction mechanism observed from Nyquist plots of composites is found to involve both grain as well as grain boundaries. The transition metal spinel ferrites have enhanced the optical and electric properties of PANI to a great extent, making them promising materials for different applications.

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Effect of magnetic ion, Fe3+ on the structural and dielectric properties of Oxychloro Bismuth Borate Glasses

Cited by 31 publications

References 34 publications

Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Thermogravimetric and temperature-dependent electrical investigations of Pr³⁺ doped multi-component silicate glasses for microelectronic technology

A Comparative Analysis of Structural, Optical and Electrical Properties of Polyaniline/Ferrite (Co, Ni, Cu, Zn) Composite

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Effect of magnetic ion, Fe3+ on the structural and dielectric properties of Oxychloro Bismuth Borate Glasses

Cited by 31 publications

References 34 publications

Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Structural, Electrical and Optical Analysis of Barium Boro-Bismuthate Glass System: Opto-Electronic Devices

Thermogravimetric and temperature-dependent electrical investigations of Pr3+ doped multi-component silicate glasses for microelectronic technology

A Comparative Analysis of Structural, Optical and Electrical Properties of Polyaniline/Ferrite (Co, Ni, Cu, Zn) Composite

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Product

Resources

About

Thermogravimetric and temperature-dependent electrical investigations of Pr³⁺ doped multi-component silicate glasses for microelectronic technology