Results 21 to 30 of about 15,698 (144)

Flexible multilayer lead-free film capacitor with high energy storage performances via heterostructure engineering

open access: yesJournal of Materiomics, 2022
The immense potential of flexible energy storage materials applied in wearable electronic devices has stimulated a lot of science researches on manufacturing technology and performance optimization.
Ningning Sun   +7 more
doaj   +1 more source

Effect of the incorporation of BiFeO3 on the structural, electrical and magnetic properties of the lead-free Bi0.5Na0.5TiO3 [PDF]

open access: yes, 2021
Powders of the system (1–x)Bi0.5Na0.5TiO3–xBiFeO3 (x = 0, 0.02, 0.08, 0.10) are synthesized by the combustion reaction method. The crystal structure and the particle size of Bi0.5Na0.5TiO3 are modified by the incorporation of BiFeO3, as can be seen from ...
Guerrero, Alejandra Isabel   +10 more
core   +1 more source

Enhanced strain and electrostrictive properties in lead-free BNT-based ceramics via rare earth doping

open access: yesJournal of Materiomics, 2022
Bi0.5Na0.5TiO3 (BNT)-based ceramics are one of the most promising lead-free ferroelectrics due to their high strain property. Compared to other chemical modifications, rare earth ions doping provides significant possibility to optimize the strain ...
Anping Deng, Jiagang Wu
doaj   +1 more source

Oxygen vacancy migration and its lattice structural origin in A-site non-stoichiometric bismuth sodium titanate perovskites

open access: yesJournal of Materiomics, 2022
Off-stoichiometry of perovskite structural Bi0.5Na0.5TiO3 (BNT) ferroelectrics can give rise to considerable oxide-ion conductivity. The inherent structural characteristics are urgent to be resolved due to its particular sensitivity of the conduction ...
Jing Shi   +8 more
doaj   +1 more source

Interfacial-Polarization Engineering in BNT-Based Bulk Ceramics for Ultrahigh Energy-Storage Density. [PDF]

open access: yesAdv Sci (Weinh)
In this work, we addressed the key issuses of physics, characterization, and application related to interfacial polarization, establishing which as the most critical determinant of dielectric ceramic energy‐storage performance (ESP). Superior ESP of an ultrahigh recoverable energy‐storage density of 12.2 J/cm3 and a high efficient of 88.8% were ...
Cao W   +8 more
europepmc   +2 more sources

Composition-sensitive electrical properties of charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2019
Charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 (BNT-BT) (x=−0.02,−0.01,0,0.01,0.02) ceramics were prepared and investigated. The depolarization temperature was dependent on composition and the ferroelectric property of x>0 was suppressed more
Ji Zhang   +6 more
doaj   +1 more source

Dielectric behaviors and relaxor characteristics in Bi0.5Na0.5TiO3-BaTiO3 ceramics [PDF]

open access: yesJournal of Advanced Dielectrics, 2019
Microstructure and dielectric behaviors of heating/cooling and bias-field were investigated in lead-free ceramics (1−x)Bi0.5Na0.5TiO3−xBaTiO3 (BNT−xBT, x=0, 0.02, 0.04, 0.06, 0.08 and 0.10).
Pei Chen   +8 more
doaj   +1 more source

Microstructures and photovoltaic effect of Ba/Fe modified Bi0.5Na0.5TiO3 ferroelectric ceramics [PDF]

open access: yesAPL Electronic Devices
Oxide ferroelectrics have great potential applications in optoelectronic and solar devices. However, most oxide ferroelectrics show wide bandgaps (>3.2 eV), limiting their use in the photovoltaic field.
Mingqiang Zhong   +6 more
doaj   +1 more source

Correlations between structure, microstructure, density and dielectric properties of the lead-free ferroelectrics Bi0.5(Na,K)0.5TiO3 [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
Solid solutions of the lead-free ferroelectric oxides Bi0.5Na0.5TiO3 (BNT) and Bi0.5K0.5TiO3 (BKT), represented as (1−x)BNT–xBKT, are studied for very close compositions in the range 0≤x≤0.36 to understand the correlation between the structure and the ...
K. Anjali, T. G. Ajithkumar, P. A. Joy
doaj   +1 more source

Enhancement of the phase, optical and dielectric studies of Bi0.5Na0.5TiO3 (BNT) based structure ceramics

open access: yesJournal of Saudi Chemical Society, 2023
The Mg-based dielectric ceramics of (Bi0.5Na0.5)(1−x)MgxTiO3, 0.00 ≤ x ≤ 0.04 was successfully synthesized by mixed oxide route at 850 °C for 2 hrs. The XRD result revealed the single phase monoclinic crystal structure without any secondary phases.
Anwar Syed   +8 more
doaj   +1 more source

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