Synthesis and structural characterization of Ce-doped bismuth titanate

Pavlovic, Nikolina; Srdić, Vladimir V.

doi:10.1016/j.materresbull.2008.09.005

Cited by 23 publications

(5 citation statements)

References 16 publications

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“…1 The presence of small portion of pyrochlore phase is expected as it was shown that stability of Bi 2 Ti 2 O 7 phase in BT powders was increased with Ce addition [13].…”

Section: Resultsmentioning

confidence: 98%

“…Bismuth titanate nanopowders (Bi 4Àx A x Ti 3 O 12 ) (A = Ce or La; x = 0, 0.5, 1; corresponding to the samples BT, BCT-y and BLT-y where y = 100Áx) were synthesized by the modified solgel method in a two-step process: first by controlled hydrolysis of titanium-butoxide with distilled water, and then by further reaction of the formed hydrated titania gel particles with corresponding ions (Bi 3+ and La 3+ or Ce 3+ ) [13,14]. Metal ions precursors in these syntheses are tetrabutyl-orthotitanate (Ti(OC 4 H 9 ) 4 , Fluka), bismuth(III)-nitrate pentahydrate (Bi(NO 3 ) 3 Â 5H 2 O, Fluka), cerium(III)-nitrate hexahydrate (Ce(NO 3 ) 3 Â 6H 2 O, Merck) and lanthanum(III)-nitrate hexahydrate (La(NO 3 ) 3 Â 6H 2 O, Riedel-de Haen).…”

Section: Methodsmentioning

confidence: 99%

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Effect of Ce and La substitution on dielectric properties of bismuth titanate ceramics

Pavlovic

Kovaľ

Dusza

et al. 2011

Ceramics International

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“…1 The presence of small portion of pyrochlore phase is expected as it was shown that stability of Bi 2 Ti 2 O 7 phase in BT powders was increased with Ce addition [13].…”

Section: Resultsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Effect of Ce and La substitution on dielectric properties of bismuth titanate ceramics

Pavlovic

Kovaľ

Dusza

et al. 2011

Ceramics International

Self Cite

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“…Peaks appearing at ~ 854 cm −1 show the vibrational mode which relates to the stretching mode of the O-Ti-O system in the ceramic samples that confirmed the presence of BaTi 4 O 9 structures 22 . The absorption mode appearing at ~ 690 cm −1 represents the Ti-O stretching mode of the octahedral group in complex perovskite structure 23,24 , as this mode appears only in BaTi 4 O 9 ceramics. Furthermore, the structure of the BaTi 4 O 9 ceramic sample has been confirmed by the XRD result.…”

Section: Results and Discussion Xrd Analysismentioning

confidence: 99%

Structural, optical and microwave dielectric properties of Ba(Ti1−xSnx)4O9, 0 ≤ x ≤ 0.7 ceramics

Ali

Uddin²,

Lal

et al. 2021

Sci Rep

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Sn-doped BaTi4O9 (BT4) dielectric ceramics were prepared by a mixed oxide route. Preliminary X-ray diffraction (XRD) structural study shows that the ceramic samples have orthorhombic symmetry with space group (Pnmm). Scanning electron microscopy (SEM) shows that the grain size of the samples decreases with an increase in Sn4+ content. The presence of the metal oxide efficient group was revealed by Fourier transform infrared (FTIR) spectroscopy. The photoluminescence spectra of the ceramic samples reported red color ~ 603, 604, 606.5 and 605 nm with excitation energy ~ 2.06, 2.05, 2.04 and 2.05 eV for Sn4+ content with x = 0.0, 0.3, 0.5, and 0.7, respectively. The microwave dielectric properties of these ceramic samples were investigated by an impedance analyzer. The excellent microwave dielectric properties i.e. high dielectric constant (εr = 57.29), high-quality factor (Qf = 11,852), or low-dielectric loss (3.007) has been observed.

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“…Peaks appearing at ~854 cm −1 show the vibrational mode which relates to the stretching mode of the O-Ti-O system in the samples that con rms the presence of the BaTi 4 O 9 structures 22 . The absorption mode appearing at ~690 cm −1 shows the Ti-O stretching mode of the octahedral group in complex perovskite structure 23,24 , as this mode appears only in BaTi 4 O 9 ceramic samples. Furthermore, the structure of the BaTi 4 O 9 ceramic sample has been con rmed by the XRD result.…”

Section: Optical Propertiesmentioning

confidence: 98%

Structural, Optical and Microwave Dielectric Properties of Ba(Ti1-xSnx)4O9, 0 ≤ x ≤ 0.7 Ceramics

Ali

Uddin²,

Lal

et al. 2021

Preprint

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Sn-doped BaTi4O9 (BT4) microwave ceramics were prepared by a mixed oxide route. Preliminary X-ray diffraction (XRD) structural study shows that the samples have orthorhombic symmetry with space group (Pnmm). Scanning electron microscopy (SEM ) shows that the grain size of the samples decreases with increasing Sn4+ contents. The presence of the metal oxide efficient group was revealed by Fourier transform infrared (FTIR) spectroscopy. The Photoluminescence spectra of the samples reported red color ~ 603, 604, 606.5 and 605 nm with excitation energy ~ 2.06, 2.05, 2.04 and 2.05 eV for Sn content at x = 0.0, 0.3, 0.5, and 0.7, respectively. The microwave dielectric properties of all the samples were investigated by an impedance analyzer. The excellent microwave dielectric properties i.e. high relative permittivity (εr = 57.29), high-quality factor (Qf = 11,852), and low-dielectric loss (3.007) has been observed.

show abstract

Synthesis and structural characterization of Ce-doped bismuth titanate

Cited by 23 publications

References 16 publications

Effect of Ce and La substitution on dielectric properties of bismuth titanate ceramics

Effect of Ce and La substitution on dielectric properties of bismuth titanate ceramics

Structural, optical and microwave dielectric properties of Ba(Ti1−xSnx)4O9, 0 ≤ x ≤ 0.7 ceramics

Structural, Optical and Microwave Dielectric Properties of Ba(Ti1-xSnx)4O9, 0 ≤ x ≤ 0.7 Ceramics

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