Effects of Nb-doping on the micro-structure and dielectric properties of (Bi0.5Na0.5)TiO3 ceramics

Petnoi, Napatporn; Bomlai, Pornsuda; Jiansirisomboon, Sukanda; Watcharapasorn, Anucha

doi:10.1016/j.ceramint.2012.10.045

Cited by 31 publications

(13 citation statements)

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“…Tailoring of the material chemistry in the form of solid-solutions, heterovalent and isovalent doping has been extensively reported in the literature to tune the response of any functional material [97,98,99,100,101,102]. The same has also been proposed for enhancing the energy storage characteristics in various AFE materials, where doping has been proven highly effective.…”

Section: Enhancing Energy Storage Capacity In Anti-ferroelectric Mmentioning

confidence: 99%

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

et al. 2015

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With an ever increasing dependence on electrical energy for powering modern equipment and electronics, research is focused on the development of efficient methods for the generation, storage and distribution of electrical power. In this regard, the development of suitable dielectric based solid-state capacitors will play a key role in revolutionizing modern day electronic and electrical devices. Among the popular dielectric materials, anti-ferroelectrics (AFE) display evidence of being a strong contender for future ceramic capacitors. AFE materials possess low dielectric loss, low coercive field, low remnant polarization, high energy density, high material efficiency, and fast discharge rates; all of these characteristics makes AFE materials a lucrative research direction. However, despite the evident advantages, there have only been limited attempts to develop this area. This article attempts to provide a focus to this area by presenting a timely review on the topic, on the relevant scientific advancements that have been made with respect to utilization and development of anti-ferroelectric materials for electric energy storage applications. The article begins with a general introduction discussing the need for high energy density capacitors, the present solutions being used to address this problem, and a brief discussion of various advantages of anti-ferroelectric materials for high energy storage applications. This is followed by a general description of anti-ferroelectricity and important anti-ferroelectric materials. The remainder of the paper is divided into two subsections, the first of which presents various physical routes for enhancing the energy storage density while the latter section describes chemical routes for enhanced storage density. This is followed by conclusions and future prospects and challenges which need to be addressed in this particular field.

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Section: Enhancing Energy Storage Capacity In Anti-ferroelectric Mmentioning

confidence: 99%

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

et al. 2015

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“…In addition, it might demonstrate that appropriate Eu 3+ content inhibits the coarsening of BNT grains in presintering resulting in more homogeneous particles of BNT ceramics, grain growth can be more extensive in the sintering stage. And diffusion is commonly contributed in the removal of pores in grain boundary; therefore Eu 3+ doping ultimately affects the morphology of BNT ceramics …”

Section: Resultsmentioning

confidence: 99%

“…And diffusion is commonly contributed in the removal of pores in grain boundary; therefore Eu 3+ doping ultimately affects the morphology of BNT ceramics. 13…”

Section: Microstructurementioning

confidence: 99%

“…Many countries have desired to use lead‐free materials for environment protection . So, it is necessary and urgent to develop lead‐free piezoelectric ceramics with excellent piezoelectric properties …”

Section: Introductionmentioning

confidence: 99%

“…[8][9][10][11][12] So, it is necessary and urgent to develop lead-free piezoelectric ceramics with excellent piezoelectric properties. [13][14][15] Dielectric, ferroelectric, and piezoelectric properties of perovskite-type ceramics are believed to be superior candidates for lead-free piezoelectric materials to reduce environmental damages. [16][17][18] Bismuth sodium titanate (Bi 0.5 Na 0.5 TiO 3 , BNT) lead-free piezoelectric ceramics as perovskite type have relatively large remanent polarization (Pr = 38 μC/cm 2 ), large piezoelectricity (Kt = 0.5, K 33 = 0.5), high phonon energy (Np = 3200 Hz.m), and high Curie temperature.…”

Section: Introductionmentioning

confidence: 99%

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Luminescence and electrical properties of Eu‐modified Bi_0.5Na_0.5TiO₃ multifunctional ceramics

et al. 2019

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The Eu3+‐modified Bi0.5Na0.5TiO3 (BNT) ceramics have been fabricated by the solid‐state reaction method. The impact of Eu3+ doping on the structure, photoluminescence, and electrical properties has been studied by XRD, SEM, PL spectra, and LCR meter. X‐ray diffraction analysis reveals that the crystal structure of the samples is well matched with the trigonal perovskite, and the optimal temperature of presintering is 880°C. The Eu3+‐doped BNT ceramics show excellent red fluorescence at 614 nm corresponding to the 5D0→7F2 transition of Eu3+ under 466 nm excitation and relatively long fluorescence lifetime. The BNT‐0.02Eu ceramic density is up to 5.68 g/cm3 and the relative density is up to 94.6% with sintering temperature 1075°C. The piezoelectric constant (d33) of samples has been significantly improved up to 110 pC/N by Eu3+ doping. The BNT‐0.03Eu ceramic presintered at 880°C and sintered at 1050°C has good dielectric properties and excellent luminescence properties. Eu3+‐doped BNT ceramics make it potential applications for novel integrated electro‐optical and multifunctional devices.

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Dielectric and ferroelectric properties of (Bi0.5Na0.5)0.94-δBa0.06Ti1−xNbxO3 lead-free ceramics

Lian

Shi

Qiu

et al. 2020

J Mater Sci: Mater Electron

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Effects of Nb-doping on the micro-structure and dielectric properties of (Bi0.5Na0.5)TiO3 ceramics

Cited by 31 publications

References 10 publications

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

Luminescence and electrical properties of Eu‐modified Bi_0.5Na_0.5TiO₃ multifunctional ceramics

Dielectric and ferroelectric properties of (Bi0.5Na0.5)0.94-δBa0.06Ti1−xNbxO3 lead-free ceramics

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Effects of Nb-doping on the micro-structure and dielectric properties of (Bi0.5Na0.5)TiO3 ceramics

Cited by 31 publications

References 10 publications

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

Anti-Ferroelectric Ceramics for High Energy Density Capacitors

Luminescence and electrical properties of Eu‐modified Bi0.5Na0.5TiO3 multifunctional ceramics

Dielectric and ferroelectric properties of (Bi0.5Na0.5)0.94-δBa0.06Ti1−xNbxO3 lead-free ceramics

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Product

Resources

About

Luminescence and electrical properties of Eu‐modified Bi_0.5Na_0.5TiO₃ multifunctional ceramics