Crystal structure, dielectric and piezoelectric properties of Ta/W codoped Bi3TiNbO9 Aurivillius phase ceramics

Peng, Zhihang; Yan, Dongxu; Chen, Qiang; Xin, Deqiong; Liu, Dan; Xiao, Dingquan; Zhu, Jianguo

doi:10.1016/j.cap.2014.10.011

Cited by 60 publications

(18 citation statements)

References 38 publications

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“…To narrow the band gap, Ni 2+ ‐doped Bi 3 TiNbO 9 nanoparticles were developed in this work on the following consideration. Firstly, it has been confirmed that the small structural distortion in Aurivillius can induce great changes for the piezoelectric performance . For example, the Curie temperature of Bi 3 TiNbO 9 shows a very sensitive dependence on the structure distortion .…”

Section: Introductionmentioning

confidence: 89%

“…Compared with the other ferroelectric oxides such as Pb(Zr,Ti)O 3 and BaTiO 3 , Bi 3 TiNbO 9 has an important application over a wide temperature range because of its high Curie temperature (~914°C) . In the past years, the preparation, structure, dielectric, electrical conduction, and piezoelectric performances for high‐temperature applications of Bi 3 TiNbO 9 have been intensively studied on A ‐site and B ‐site modifications . On the other hand, Bi 3 TiNbO 9 also shows nonlinear optical properties .…”

Section: Introductionmentioning

confidence: 99%

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On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Wan

Xie

et al. 2016

J. Am. Ceram. Soc.

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Bi3TiNbO9 nanoparticles with an acceptor dopant of Ni2+ ion were prepared by the conventional Pechini sol–gel synthesis. The X‐ray polycrystalline diffraction measurements (XRD) and the Rietveld refinements of Bi3TiNbO9 samples were completed. The surface property of Bi3TiNbO9 nanoparticles was investigated by transmission electron microscope, scanning electron microscope), and N2 adsorption–desorption isotherms. Bi3TiNbO9 nanoparticles showed an optical band gap with energy of 3.1 eV in the UV region. While the Ni2+‐doping could greatly reduce the band energy of Bi3TiNbO9:xNi2+ nanoparticles to 2.79 eV (x = 0.05) and 2.61 eV (x = 0.1). This indicates that the Ni‐doped samples could be excited by UV–visible light. The photocatalytic abilities were tested by the photodegradation on methylene blue solution (MB) and phenol solutions excited by visible light. Accordingly, the photocatalytic activity was improved by the Ni‐doping in B‐sites in this Aurivillius‐type structure. The results concluded that Bi3TiNbO9:Ni2+ would be a possible candidate as a visible light‐driven photocatalyst. The effective photocatalysis was discussed on the structure characteristic and experiment such as polarized Aurivillius (Bi2O2)2+ layers, luminescence, and decay lifetimes, etc.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Wan

Xie

et al. 2016

J. Am. Ceram. Soc.

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“…As well‐known, there are mainly two lead‐free high T c ferroelectric material systems. One is Bi‐layered Aurivillius phases like Bi 3 TiNbO 9 ( T c ~ 940°C), but their low ferroelectric remnant polarization ( P r ~ 5 μC/cm 2 ) and piezoelectric constant ( d 33 < 10 pC/N) prevent the actual applications. The other high T c lead‐free ferroelectric system is BiFeO 3 ‐based solutions exemplified by (1− x )BiFeO 3 – x BaTiO 3 ( T c ~ 620°C for x = 0.25) .…”

Section: Introductionmentioning

confidence: 99%

Composition‐Dependent Microstructures and Properties of La‐, Zn‐, and Cr‐Modified 0.675BiFeO₃–0.325BaTiO₃ Ceramics

Zhang

Chang

et al. 2016

J. Am. Ceram. Soc.

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Pure and 1.0 mol% La 2 O 3 , ZnO, and Cr 2 O 3 -modified 0.675BiFeO 3 -0.325BaTiO 3 (BF-BT) multiferroic ceramics were prepared and comparatively investigated. For pure and La-, Zn-, and Cr-modified BF-BT, the average grain size is 415, 325, 580, and 395 nm, and the maximum dielectric constant temperature is 460°C, 430°C, 465°C, and 445°C, respectively. All additives weaken the ferroelectricity slightly. Znand Cr-modifications dramatically enhance the room-temperature magnetic properties, whereas La-modification has almost no effect on magnetic property. Especially, the Cr-modified BF-BT ceramics show switchable polarization and magnetization of 4.9 lC/cm 2 and 0.27 emu/g at room temperature, the magnetoelectric coupling is confirmed by the magnetizationmagnetic field curves measured on ceramics before and after electric poling. The mechanism responsible for the different effects of additive on microstructures and properties are discussed based on additive-induced point defect and second phase as well as diffusion-induced substitution. These results not only provide a promising room-temperature multiferroic material candidate, but also are helpful to design new multiferroic materials with enhanced properties.

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“…In all the CBTO ceramics, the grains were shown to have grown in a plate-like shape [10]. This grain shape is caused by the anisotropy of the crystal structure of BLSFs, including CBTO [6]. We also found that the direction of grains is very random.…”

Section: Methodsmentioning

confidence: 84%

“…Thus, many studies have focused on enhancing the electrical and piezoelectric properties of BLSFs, such as control of preferred orientation [4], the effects of grain size [5], and A-site and/or B-site substitution [2,6,7]. In addition, there is a method for regulating the Bi 2 O 3 concentration, which can compensate structural defects (bismuth and oxygen vacancy complexes) due to bismuth volatilization that can occur in high-temperature heat treatment [8,9].…”

Section: Introductionmentioning

confidence: 98%

Effects of excess Bi2O3 on grain orientation and electrical properties of CaBi4Ti4O15 ceramics

Cho

Choi

Jeon

et al. 2015

Current Applied Physics

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Crystal structure, dielectric and piezoelectric properties of Ta/W codoped Bi3TiNbO9 Aurivillius phase ceramics

Cited by 60 publications

References 38 publications

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Composition‐Dependent Microstructures and Properties of La‐, Zn‐, and Cr‐Modified 0.675BiFeO₃–0.325BaTiO₃ Ceramics

Effects of excess Bi2O3 on grain orientation and electrical properties of CaBi4Ti4O15 ceramics

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Crystal structure, dielectric and piezoelectric properties of Ta/W codoped Bi3TiNbO9 Aurivillius phase ceramics

Cited by 60 publications

References 38 publications

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi3TiNbO9 Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi3TiNbO9 Nanoparticles

Composition‐Dependent Microstructures and Properties of La‐, Zn‐, and Cr‐Modified 0.675BiFeO3–0.325BaTiO3 Ceramics

Effects of excess Bi2O3 on grain orientation and electrical properties of CaBi4Ti4O15 ceramics

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On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

On Structure, Optical Properties and Photodegradated Ability of Aurivillius‐Type Bi₃TiNbO₉ Nanoparticles

Composition‐Dependent Microstructures and Properties of La‐, Zn‐, and Cr‐Modified 0.675BiFeO₃–0.325BaTiO₃ Ceramics