Electrical properties of barium titanate in presence of Sn2+ dopant

Tomar, Richa; Pandey, Rahul; Singh, N. B.; Gupta, Manoj; Gupta, Pankaj

doi:10.1007/s42452-020-2017-8

Cited by 23 publications

(8 citation statements)

References 21 publications

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“…Mn 2+ oxidizes into Mn 3+ or Mn 4+ following the reaction Mn 2+ + V o ″ → Mn 4+ + V o × ) to produce oxygen vacancies. , This behavior takes part in the reduction of tan δ in the investigated ceramics. The dielectric plots, especially in x = 0.00, exhibit a dielectric anomaly at temperatures > 300 °C, which may be due to the competitive phenomenon of dielectric relaxation/polarization with electrical conduction induced by an oxygen vacancy, as also observed in other ferroelectric oxides. , When the frequency increases, the dielectric anomaly in the ε r peaks becomes diminished, which may be attributed to the relaxation of dipoles. All types of polarizations will not be sustained at high frequency .…”

Section: Results and Discussionmentioning

confidence: 76%

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Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications

Rehman

Manan

Uzair

et al. 2023

ACS Appl. Electron. Mater.

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Composition of ceramics 0.92BaTiO3–0.08Bi(Mg0.5Ce0.5)O3 + xwt % MnO2 {designated as BTBMC-x wt % Mn} (0.00 ≤ x ≤ 0.20) was fabricated via a solid-state sintering route for the investigation of phase, microstructure, dielectric, electrical, and energy storage behaviors. X-ray diffraction results indicated a single phase without an impurity phase. The MnO2 additive led to a decrease in the average grain size of BTBMC to ≤0.2 μm (submicron), which decreased the electrical conductivity from ∼10–6 s cm–1 to ∼10–10 s cm–1 when the x value increased from 0.00 to 0.20. This small conductivity is responsible for the enhancement of the dielectric breakdown strength (BDS) up to 315 kV cm–1 with an energy storage density (W s) of ∼2.688 J cm–3 and a recoverable energy density (W rec) of ∼1.684 J cm–3 for x = 0.20. This ceramic system is chosen to be a good candidate for advanced capacitor applications.

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Section: Results and Discussionmentioning

confidence: 76%

“…The abnormal increase in ε r and tan δ at elevated temperatures resulted from the activation of defects. The leakage conduction loss is most prominent at low frequencies due to the provision of an appropriate time to respond and a pathway for the directional movement of carriers …”

Section: Results and Discussionmentioning

confidence: 99%

Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications

Rehman

Manan

Uzair

et al. 2023

ACS Appl. Electron. Mater.

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“…The porosity can be seen undergoing a significant decrement at 800 o C. 3 exhibits the dielectric constant against the frequency. The dielectric constant decreases with increasing frequency [42]. This is because the dipole cannot follow the applied AC electric field [43].…”

Section: Resultsmentioning

confidence: 99%

Impacts of low sintering temperature on microstructure, atomic bonds, and dielectric constant of barium titanate (BaTiO3) prepared by co-precipitation technique

Suherman

Nurosyid

Khairuddin

et al. 2022

J. Phys.: Conf. Ser.

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Barium Titanate (BaTiO3 or BT) is one of which the most attractive ferroelectric materials that have been widely studied. The fabrication process affects the properties of ferroelectric materials where increasing the sintering temperature is one of the ways to improve their performance. In this study, BT has been synthesized using the co-precipitation technique. The samples were sintered for 4 h with varying sintering temperatures of 700°C and 800°C. The purpose of this study was to investigate the effects of variation of sintering temperatures on the microstructure, dielectric constant, and chemical bonds of BT. The micro structure observed by the X-Ray Diffraction (XRD) showed that the crystal size of the sample at 800°C was larger than the sample at 700°C. Furthermore, the Fourier Transform Infrared (FTIR) analysis revealed that increasing the sintering temperature decreased the intensity of the impurities’ peaks of C-H and C=O atomic bonds in the BT structure. The impurity that appear is the carbonate phase which does not decompose during the formation of BT. Moreover, based on the Resistance Capacitance Inductance (RCL Meter) examination, increasing the sintering temperatures could enhance the dielectric constant of the BT samples from 65 to 162. Thus, it can be inferred, that the increase in the sintering temperature could improve the crystal structure and decrease the impurities phases of the BT materials so that further could enhance the dielectric constant.

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“…In general, the correlation between dielectric and mechanical properties in a composite is challenging to observe experimentally, and even more so to explain. In this study, the BTO particles (exhibiting high dielectric constant ~100 [66]) were dispersed into the silicon rubber matrix (with a dielectric constant of ~2 [67]). The overall dielectric constant of the composites lays in the range 2-12, even for filler loadings as much as 60%.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Dielectric Behavior of Stretchable Silicone Rubber–Barium Titanate Composites

Drymiskianaki,

Katsara,

Manousaki

et al. 2024

Crystals

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In this study, elastomer composites, including silicone rubber and barium titanate, were fabricated by mechanical mixing, a low-cost, fast, and easy technique to produce highly dielectric materials. The resulting composites were investigated in terms of their dielectric and mechanical properties in terms of filler percentage in the mixture. Dielectric permittivity measurements were taken using the microwave regime, and uniaxial tensile tests were carried out for the study of the materials’ mechanical properties, while combined experiments were also carried out to investigate potential correlations between them. The experimental results show that barium titanate inclusions in silicone matrix significantly improve the dielectric constant while reducing the mechanical properties of composites. In addition, combined experiments show that the composites exhibit a nearly stable dielectric profile under mechanical deformations. Consequently, mechanically mixed barium titanate–silicone elastomer composites could potentially become a cost-effective alternative in the extensive market for insulating materials and flexible electronics.

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Electrical properties of barium titanate in presence of Sn2+ dopant

Cited by 23 publications

References 21 publications

Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications

Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications

Impacts of low sintering temperature on microstructure, atomic bonds, and dielectric constant of barium titanate (BaTiO3) prepared by co-precipitation technique

Dielectric Behavior of Stretchable Silicone Rubber–Barium Titanate Composites

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Electrical properties of barium titanate in presence of Sn2+ dopant

Cited by 23 publications

References 21 publications

Enhanced Energy Storage Performance of MnO2-Modified 0.92BaTiO3–0.08Bi(Mg0.5Ce0.5)O3 Ceramics for Capacitor Applications

Enhanced Energy Storage Performance of MnO2-Modified 0.92BaTiO3–0.08Bi(Mg0.5Ce0.5)O3 Ceramics for Capacitor Applications

Impacts of low sintering temperature on microstructure, atomic bonds, and dielectric constant of barium titanate (BaTiO3) prepared by co-precipitation technique

Dielectric Behavior of Stretchable Silicone Rubber–Barium Titanate Composites

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Product

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Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications

Enhanced Energy Storage Performance of MnO₂-Modified 0.92BaTiO₃–0.08Bi(Mg_0.5Ce_0.5)O₃ Ceramics for Capacitor Applications