Determination of A.C. Conductivity of Nano-Composite Perovskite Ba&amp;lt;sub&amp;gt;(1- x - y)&amp;lt;/sub&amp;gt;Sr&amp;lt;sub&amp;gt;(x)&amp;lt;/sub&amp;gt;TiFe&amp;lt;sub&amp;gt;(y)&amp;lt;/sub&amp;gt;O&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt; Prepared by the Sol-Gel Technique

Willander, Magnus; Nur, Omer; Israr, Muhammad; Hamad, Ali B. Abou; Desouky, F. G. El; Salem, Mohamed; Battisha, I. K.

doi:10.4236/jcpt.2012.21001

Cited by 12 publications

(2 citation statements)

References 27 publications

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“…Acceptor impurities of the rst series of transition metals (Cr 4+ (0.55 Å), Fe 3+ (0.64 Å), Co 3+ (0.63 Å), and Ni 2+ (0.78 Å)) are incorporated at the Ti 4+ (0.68 Å), as their size is incompatible with that of Ba 2+ (1.35 Å), for the fabrication of multi-* corresponding author; e-mail: szbasha@yahoo.com, ibattisha@gmail.com layer ceramic capacitors to allow for the use of cheaper metal electrodes (i.e. Ni) [8].…”

Section: Introductionmentioning

confidence: 99%

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

et al. 2014

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Pure barium titanate BaTiO3 (BT) and BT doped with two dierent transition elements Fe 3+ and Ni 2+ at 5 mol.% (BT5Fe and BT5Ni, respectively) as constant concentration in powder form have been prepared by sol gel method using barium acetate, titanium(IV) n-butoxide, iron and nickel nitrates as precursor materials. The microstructure of BT and the inuence of Fe and Ni dopants on it were investigated by X-ray diraction and Fourier transform infrared spectroscopy. X-ray diraction shows that tetragonal phase is dominant for pure BT sintered for 4 h at 800 • C. Scanning electron microscopy and transmission electron microscopy were used to study surface morphology and particle size distribution for BT5Fe and BT5Ni, respectively. The presence of hydroxyl defects were veried by Fourier transform infrared spectroscopy for (BaTi1−xFexO 3−x/2) (BTxFe), where x = 0.005, 0.01, 0.05, and 0.07 and (BaTi1−xNixO 3−x/2) (BTxNi), where x = 0.005, 0.01, 0.03, 0.05, and 0.07.

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Section: Introductionmentioning

confidence: 99%

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

et al. 2014

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“…Instead, by heating the samples above, its own Curie temperature (T c ) and ε' are obviously decreased. This is because the formed tetragonal phase (nonsymmetric) at lower temperature transformed into cubic phase (symmetric) at temperature higher than T c [44]. While Figure 7 shows that the nature of tanδ for all samples is the same as that for ε', (i.e.)…”

Section: The Variation Of the Permittivity (ε') Dielectric Loss (ε") Lossmentioning

confidence: 88%

Er3+ and Er3+/Yb3+ Ions Embedded in Nano-Structure BaTi0.9Sn0.1O3: Structure, Morphology and Dielectric Properties

Sayed¹,

Battisha²,

Lahmar³

et al. 2021

WJNSE

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Barium titanate tin oxides BaTi 0.9 Sn 0.1 O 3 referred to as (BTSO) doped with 0.5Er 3+ and co-doped with (0.75 and 1) Yb 3+ ions, were prepared using a modified sol-gel method and calcinated at 1050˚C in the air for 4 h. The influence of the selected rare earth element on the structure morphology, dielectric properties behavior was investigated. From TEM micrographs, it has appeared that the particles have a spherical shape with a small size in nanoscale. The average particle size is determined both by TEM and XRD diffraction was found to be in agreement and within the range between 45.9 and 57.7 nm. The effects of Lanthanide incorporation on the evolution of these nano-crystalline structures were followed by XRD and (FTIR). The XRD patterns give rise to a single perovskite phase, while the tetragonality was found to decrease gradually with Er 3+ and Er 3+ /Yb 3+ ions, respectively. FTIR results showed enhancement of the crystallinity and the absence of carbonates upon increasing Yb 3+ ions concentration from 0.75 up to 1 mol%. The dielectric and conductivity properties were found to be enhanced by the nature and the concentration of the lanthanide element (Er 3+ , Yb 3+ ) in the BTSO host lattice. The Curie temperature (T c ) shifted to a lower value from 117 for BTSO: 0.5Er to 93 for BTSO: 0.5Er/1Yb and the permittivity ε' increased from 3972 to 6071, so BTSO: 0.5Er/1Yb good crystalline material candidate for capacitors application due to its higher permittivity.

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Effect of Fe – substitution on phase transformation, optical, electrical and dielectrical properties of BaTiO3 nanoceramics synthesized by sol-gel auto combustion method

et al. 2016

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Determination of A.C. Conductivity of Nano-Composite Perovskite Ba<sub>(1- x - y)</sub>Sr<sub>(x)</sub>TiFe<sub>(y)</sub>O<sub>3</sub> Prepared by the Sol-Gel Technique

Cited by 12 publications

References 27 publications

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

Er<sup>3+</sup> and Er<sup>3+</sup>/Yb<sup>3+</sup> Ions Embedded in Nano-Structure BaTi<sub>0.9</sub>Sn<sub>0.1</sub>O<sub>3</sub>: Structure, Morphology and Dielectric Properties

Effect of Fe – substitution on phase transformation, optical, electrical and dielectrical properties of BaTiO3 nanoceramics synthesized by sol-gel auto combustion method

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Determination of A.C. Conductivity of Nano-Composite Perovskite Ba&lt;sub&gt;(1- x - y)&lt;/sub&gt;Sr&lt;sub&gt;(x)&lt;/sub&gt;TiFe&lt;sub&gt;(y)&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Prepared by the Sol-Gel Technique

Cited by 12 publications

References 27 publications

FTIR Study of Nanostructure Perovskite BaTiO3Doped with Both Fe3+and Ni2+Ions Prepared by Sol-Gel Technique

FTIR Study of Nanostructure Perovskite BaTiO3Doped with Both Fe3+and Ni2+Ions Prepared by Sol-Gel Technique

Er&lt;sup&gt;3+&lt;/sup&gt; and Er&lt;sup&gt;3+&lt;/sup&gt;/Yb&lt;sup&gt;3+&lt;/sup&gt; Ions Embedded in Nano-Structure BaTi&lt;sub&gt;0.9&lt;/sub&gt;Sn&lt;sub&gt;0.1&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;: Structure, Morphology and Dielectric Properties

Effect of Fe – substitution on phase transformation, optical, electrical and dielectrical properties of BaTiO3 nanoceramics synthesized by sol-gel auto combustion method

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Determination of A.C. Conductivity of Nano-Composite Perovskite Ba<sub>(1- x - y)</sub>Sr<sub>(x)</sub>TiFe<sub>(y)</sub>O<sub>3</sub> Prepared by the Sol-Gel Technique

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

FTIR Study of Nanostructure Perovskite BaTiO₃Doped with Both Fe³⁺and Ni²⁺Ions Prepared by Sol-Gel Technique

Er<sup>3+</sup> and Er<sup>3+</sup>/Yb<sup>3+</sup> Ions Embedded in Nano-Structure BaTi<sub>0.9</sub>Sn<sub>0.1</sub>O<sub>3</sub>: Structure, Morphology and Dielectric Properties