Dielectric properties of A and B-site doped LaTiO3−δ perovskites synthesised by sol–gel method

Madhavan, Bradha; Ashok, Anuradha

doi:10.1007/s10971-014-3486-2

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…An extensive research work was done on this compound in both bulk and nanoform. For instance, Madhavan et al [9] prepared the LT via sol-gel method and reported the effect of A and B-site doping on the dielectric constant. The results indicated that the A-site doping allowed obtaining 1500 value of dielectric constant while B-site doping led to attain 900 at 100 Hz.…”

Section: Introductionmentioning

confidence: 99%

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Dastagiri¹,

Lakshmaiah²,

Naidu

et al. 2019

J Mater Sci: Mater Electron

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The present work focussed on the preparation and characterization of Al x La 1−x TiO 3 (x = 0.2-0.8) (ALTO) nanospheres. The phase purity and tetragonal structure was confirmed using the X-ray diffraction patterns. In addition, the dimensions of the ALTO unit cell were decreased with increase of Al-content. The morphological investigations evidenced the formation of spherical grains and particles of nano size. The UV-Visible spectra revealed the increasing trend of band gap (E g) from 3.341 to 3.378 eV as a function 'x'. Besides, the frequency, and compositional variation of dielectric parameters was described. Subsequently, the space charge polarization, and electrical conduction mechanisms were well understood using the complex dielectric modulus, and impedance spectroscopy. The Cole-Cole plots ensured that the ALTO materials exhibited the semiconducting nature due to the formation of complete semicircular arcs. Moreover, the non-Debye type relaxations were noticed in Cole-Cole plots.

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Section: Introductionmentioning

confidence: 99%

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Dastagiri¹,

Lakshmaiah²,

Naidu

et al. 2019

J Mater Sci: Mater Electron

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“…Among various types of titanate perovskites, LTO is considered to be a very promising material. [9,10] Cu doping in LTO can not only improve its dielectric properties, but also enhance the Fenton degradation of rhodamine B. [11,12] The Sr doping lowers the conduction band and reduces the band gap of La 1−x Sr x TiO 3 .…”

Section: Introductionmentioning

confidence: 99%

Effect of oxygen content on dielectric characteristics of Cr-doped LaTiO _x

Chen

Cui

2018

Chinese Phys. B

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The ceramics La 0.85 Cr 0.15 TiO x and La 0.7 Cr 0.3 TiO x are prepared by conventional solid-state reaction method. The dielectric properties of Cr-doped LaTiO x as a function of frequency (0.1 kHz ≤ f ≤ 1 MHz) and temperature (77 K ≤ T ≤ 360 K) are studied. The blocks are then annealed in a flowing O 2 or Ar/H 2 to convert their oxygen content and the tests mentioned above are performed. The highly oxygenated samples exhibit extremely high low-frequency dielectric constants at room temperature (∼10 6 ). The results show that the oxygen stoichiometry could significantly influence the dielectric properties of Cr-doped LaTiO x .

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Defect dipole polarization mechanism in low-dimensional europium substituted Al0.8La0.2TiO3 nanostructures

Dastagiri

Lakshmaiah

Naidu

2020

Physica E: Low-dimensional Systems and Nanostructures

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Dielectric properties of A and B-site doped LaTiO3−δ perovskites synthesised by sol–gel method

Cited by 10 publications

References 31 publications

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Effect of oxygen content on dielectric characteristics of Cr-doped LaTiO _x

Defect dipole polarization mechanism in low-dimensional europium substituted Al0.8La0.2TiO3 nanostructures

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Dielectric properties of A and B-site doped LaTiO3−δ perovskites synthesised by sol–gel method

Cited by 10 publications

References 31 publications

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Induced dielectric behavior in high dense AlxLa1-xTiO3 (x = 0.2–0.8) nanospheres

Effect of oxygen content on dielectric characteristics of Cr-doped LaTiO x

Defect dipole polarization mechanism in low-dimensional europium substituted Al0.8La0.2TiO3 nanostructures

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Effect of oxygen content on dielectric characteristics of Cr-doped LaTiO _x