Bi4Ti3O12 electroceramics: effect of doping, crystal structure mechanisms and piezoelectric response

Supriya, S.

doi:10.1007/s43207-023-00290-9

Cited by 16 publications

(3 citation statements)

References 138 publications

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“…[ 1 ] The space group of BiT is the tetragonal 14/mmm one above

T_{\text{C}}^{\text{FE}}

and becomes the orthorhombic one Fmmm below

T_{\text{C}}^{\text{FE}}

. [ 2 ] BiT has attracted great interest due to its applications in optical devices and ferroelectric memories. It is a typical example of single‐phase piezoelectric materials.…”

Section: Introductionmentioning

confidence: 99%

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Apostolova,

Apostolov,

Trimper

et al. 2023

Physica Status Solidi (b)

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Based on a microscopic model and the Green’s function theory we have investigated the temperature, size, magnetic field and ion doping dependence of the magnetic, electric and dielectric properties in Fe‐and Nd‐doped ferroelectric Bi4Ti3O12‐bulk and nanoparticles. The multiferroisms can be achieved in two ways. At once the magnetism appears by substitution of the nonmagnetic Ti4+ ion with Fe3+, or other transition metal ions in bulk Bi4Ti3O12. Otherwise, the simultaneous existence of Fe3+ and Fe4+ giving rise to a super‐exchangenism responsible for the ferromagnetic interaction. Moreover, multiferoism is possible also in pure Bi4Ti3O12 nanoparticles. Due to surface effects and oxygen vacancies leading to different valence states on the surface of Ti3+ or Ti2+ with spin value S≠0 there appears weak magnetism, which can be improved by Fe ion doping. We demonstrate that doping with rare earth ions, for example Nd3+, at the Bi3+ site is able to improve the ferroelectric, multiferroic and dielectric properties.This article is protected by copyright. All rights reserved.

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“…[ 1 ] The space group of BiT is the tetragonal 14/mmm one above

T_{\text{C}}^{\text{FE}}

and becomes the orthorhombic one Fmmm below

T_{\text{C}}^{\text{FE}}

. [ 2 ] BiT has attracted great interest due to its applications in optical devices and ferroelectric memories. It is a typical example of single‐phase piezoelectric materials.…”

Section: Introductionmentioning

confidence: 99%

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Apostolova,

Apostolov,

Trimper

et al. 2023

Physica Status Solidi (b)

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“…22,[29][30][31][32][33][34][35] Rare Earth (RE) elements with favorable temperature coefficients are widely used in ceramics. 36,37 Similarly, doping RE elements in Y2Ti2O7 changes the temperature coefficient. 38 Various RE elements were utilized to improve the electrical, thermal, and optical properties of Y 2 Ti 2 O 7 .…”

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confidence: 99%

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Supriya

2024

ECS J. Solid State Sci. Technol.

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The invention of yttrium titanates (Y2Ti2O7) with various exciting properties in electroceramics has created great attention among industrialists and researchers. Improving the materials of pyrochlore oxides with significant properties for future electronic devices became essential. The Y2Ti2O7 is one such cubic pyrochlore at room temperature, having excellent dielectric and luminescence properties. This article comprehensively reviews the basics and state-of-the-art in developing Y2Ti2O7 ceramics. This material is widely used for electronic devices: transducers, capacitors, optoelectronic components, and light modulators. This review focuses on the fabrication methods and crystal structure mechanisms for optimizing functional properties and current challenges. Moreover, the effect of doping elements of Y2Ti2O7-based ceramics is briefly discussed. Also, future perspectives are provided to spotlight new and trending research directions in this materials research.

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“…The chemical formula of BLSFs is (Bi 2 O 2 ) 2+ (A m-1 B m O 3m+1 ) 2− , and their structure is formed by the regular arrangement of perovskite layers (A m−1 B m O 3m+1 ) 2− and bismuth oxide layers (Bi 2 O 2 ) 2+ [8]. Due to their special structure, BLSFs also have relatively low dielectric constants, aging rate, and temperature coefficients of the resonant frequency [9]. BIT, as one vital type of BLSFs, has great application prospects in high-temperature environments due to its excellent T C of 675 ℃ and large spontaneous polarization (P s ) of 50 μC•cm −2 .…”

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confidence: 99%

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

Chen,

Ma,

et al. 2024

Journal of Advanced Ceramics

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In this study, (Cr 1/3 /Ta 2/3 ) non-equivalent co-doped Bi 4 Ti 3 O 12 (BIT) ceramics were prepared to solve the problem that high piezoelectric performance, high Curie temperature, and high-temperature resistivity could not be achieved simultaneously in BIT-based ceramics. A series of Bi 4 Ti 3−x (Cr 1/3 Ta 2/3 ) x O 12 (x = 0-0.04) ceramics were synthesized by the solid-state reaction method. The phase structure, microstructure, piezoelectric performance, and conductive mechanism of the samples were systematically investigated. The B-site non-equivalent co-doping strategy combining high-valence Ta 5+ and low-valence Cr 3+ significantly enhances electrical properties due to a decrease in oxygen vacancy concentration. Bi 4 Ti 2.97 (Cr 1/3 Ta 2/3 ) 0.03 O 12 ceramics exhibit a high piezoelectric coefficient (d 33 = 26 pC•N −1 ) and a high Curie temperature (T C = 687 ℃). Moreover, the significantly increased resistivity (ρ = 2.8×10 6 Ω•cm at 500 ℃) and good piezoelectric stability up to 600 ℃ are also obtained for this composition. All the results demonstrate that Cr/Ta co-doped BIT-based ceramics have great potential to be applied in high-temperature piezoelectric applications.

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Bi4Ti3O12 electroceramics: effect of doping, crystal structure mechanisms and piezoelectric response

Cited by 16 publications

References 138 publications

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics

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Bi4Ti3O12 electroceramics: effect of doping, crystal structure mechanisms and piezoelectric response

Cited by 16 publications

References 138 publications

Origin of Multiferroism of Ion Doped at Different Sites: Bi4Ti3O12 Bulk and Nanoparticles

Origin of Multiferroism of Ion Doped at Different Sites: Bi4Ti3O12 Bulk and Nanoparticles

Review —Recent Advances in Yttrium Titanate Pyrochlores: Crystal Structure and Impact of Doping Elements

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi 4Ti 3O 12-based high-temperature piezoceramics

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Product

Resources

About

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Origin of Multiferroism of Ion Doped at Different Sites: Bi₄Ti₃O₁₂ Bulk and Nanoparticles

Enhanced piezoelectric performance of Cr/Ta non-equivalent co-doped Bi ₄Ti ₃O ₁₂-based high-temperature piezoceramics