Results 61 to 70 of about 15,698 (144)

High stability of properties in morphotropic phase boundary Bi0.5Na0.5TiO3-BaTiO3 piezoceramics [PDF]

open access: yes, 2016
The (1-x)Bi0.5Na0.5TiO3–xBaTiO3 (BNT-xBT) system with composition at its morphotropic phase boundary (MPB) has received significant attention because of their attractive properties as lead-free piezoceramics.
Cerdeiras Montero, Elena   +9 more
core   +1 more source

Diffusosphere engineering in BNT-based multilayer heterogeneous film capacitors for high performance

open access: yesJournal of Materiomics
Combining layers with high breakdown resistance and high polarization is a promising approach for designing dielectric capacitors with high energy density and efficiency.
Jin Qian   +8 more
doaj   +1 more source

Bifunctional Design of Ferroelectric‐Order and Band‐Engineering in Cu:KTN Crystal for Extended Self‐Powered Photoelectric Response

open access: yesAdvanced Science, Volume 12, Issue 6, February 10, 2025.
This work proposes a bifunctional design strategy of ferroelectric‐order and electronic‐band to improve the photocurrent and extend the responsive range simultaneously. In a Cu‐doped KTa1−xNbxO3 perovskite crystal, a conductive channel is constructed by “head‐to‐head” ferroelectric domains, associated with the emergence of micrometer‐scale supercells ...
Yaqian Wang   +6 more
wiley   +1 more source

Unlocking Electrostrain in Plastically Deformed Barium Titanate

open access: yesAdvanced Materials, Volume 36, Issue 52, December 27, 2024.
A dislocation engineering strategy is introduced to unlock electrostrains and piezoelectric properties in lead‐free BaTiO3 single crystals, achieving a record‐high strain energy density and large piezoelectric coefficient through domain structure design and controlled switching, with broad implications for advanced actuator applications.
Fangping Zhuo   +15 more
wiley   +1 more source

First-principles calculation of the impact of interstitial point defects on the Bi0.5Na0.5TiO3 (110) surface

open access: yesTạp chí Khoa học Đại học Đà Lạt
This study explores how intrinsic interstitial defects can be used to modulate the electronic and optical properties of the Bi0.5Na0.5TiO3 (BNT) (110) surface, a promising lead-free piezoelectric.
Tien Lam Vu   +3 more
doaj   +1 more source

Ferroelectric Nanomaterials for Energy Harvesting and Self‐Powered Sensing Applications

open access: yesAdvanced Sensor Research, Volume 3, Issue 12, December 2024.
Ferroelectric nanomaterials exhibit various mechanisms for electricity generation, including piezoelectric, pyroelectric, photovoltaic, and triboelectric effects, making them promising candidates for harvesting and sensing multiple forms of energy.
Xiang Yu   +6 more
wiley   +1 more source

An Emergent Quadruple Phase Ensemble in Doped Bismuth Ferrite Thin Films Through Site and Strain Engineering

open access: yesAdvanced Functional Materials, Volume 34, Issue 39, September 25, 2024.
A morphotropic phase boundary comprising a coexistence of four distinct crystallographic phases is uncovered through A‐site doping and strain engineering. The various ferroelectric, polar, and nonpolar phases form a nanoscale mixture without the presence of crystallographically hard boundaries.
Jinling Zhou   +12 more
wiley   +1 more source

Recent Advances in Piezocatalysts for Dye Degradation

open access: yesAdvanced Sustainable Systems, Volume 8, Issue 8, August 2024.
This review outlines the principles of piezocatalysis and introduces two primary forms of driving force in nature. The piezocatalytic materials are classified as organic and inorganic categories in this review. The techniques for improving piezocatalytic efficiency in degrading dye solutions are presented.
Lu Zhou   +14 more
wiley   +1 more source

Superior energy storage density and efficiency in antiferroelectric-like BNT-based ceramics via single-element phase engineering

open access: yesJournal of Advanced Ceramics
Bi0.5Na0.5TiO3 (BNT) has received much attention because of its excellent dielectric properties for pulsed power systems. Most of the work has focused on inducing the relaxation behavior of BNT-based materials by doping with multiple elements, but the ...
Shuang He   +7 more
doaj   +1 more source

Strain mediated magnetoelectric coupling induced in (x) Bi0.5Na0.5TiO3-(1-x) MgFe2O4 composites

open access: yes, 2017
Particulate composites of ferroelectric and ferrite phases having general formula (x) Bi0.5Na0.5TiO3-(1-x) MgFe2O4 (x= 0, 0.5, 0.6, 0.7, 0.8 and 1.0), equivalently denoted as (x) BNT-(1-x) MgFO were synthesized by solid state reaction method.
-, Manjusha   +4 more
core   +1 more source

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