Results 41 to 50 of about 82,374 (198)

Piezoelectric Charge Coefficient of Halide Perovskites

open access: yesMaterials
Halide perovskites are an emerging family of piezoelectric and ferroelectric materials. These materials can exist in bulk, single-crystal, and thin-film forms. In this article, we review the piezoelectric charge coefficient (dij) of single crystals, thin films, and dimension-tuned halide perovskites based on different measurement methods.
Muddam, Raja Sekhar   +2 more
openaire   +3 more sources

Ultra-high energy harvester performance in KNN-based textured piezoceramics via multiscale reconfiguration design

open access: yesJournal of Advanced Ceramics
The lower electromechanical performance of lead-free piezoelectric materials remains a critical bottleneck impeding their ability to replace lead-based materials in energy harvesting.
Caixia Zhu   +5 more
doaj   +1 more source

Active multilayer mirrors for reflectance tuning at extreme ultraviolet (EUV) wavelengths [PDF]

open access: yes, 2012
We propose an active multilayer mirror structure for EUV wavelengths which can be adjusted to compensate for reflectance changes. The multilayer structure tunes the reflectance via an integrated piezoelectric layer that can change its dimension due to an
Bayraktar, M.   +6 more
core   +2 more sources

Understanding and tuning negative longitudinal piezoelectricity in hafnia

open access: yesnpj Computational Materials
Most piezoelectric materials exhibit a positive longitudinal piezoelectric effect (PLPE), while a negative longitudinal piezoelectric effect (NLPE) is rarely reported or paid much attention.
Huirong Jing, Chaohong Guan, Hong Zhu
doaj   +1 more source

Nonlinear multi-fields coupled model of magnetoelectric coefficient and sensitivity in bilayer ME sensor

open access: yesAIP Advances, 2018
Aiming to design magnetostrictive/piezoelectric asymmetric bilayer laminate structure that is commonly used in magnetoelectric (ME) sensor, a bilayer static nonlinear magneto-mechanical- electro-thermal coupled theoretical model which is about ...
Hao-Miao Zhou   +4 more
doaj   +1 more source

Optimal configuration of microstructure in ferroelectric materials by stochastic optimization

open access: yes, 2010
An optimization procedure determining the ideal configuration at the microstructural level of ferroelectric (FE) materials is applied to maximize piezoelectricity.
Goldstein H.   +7 more
core   +1 more source

Study of orientation effect on nanoscale polarization in BaTiO3 thin films using piezoresponse force microscopy [PDF]

open access: yes, 2005
We have investigated the effect of texture on in-plane (IPP) and out- of plane (OPP) polarizations of pulsed-laser-deposited BaTiO3 thin films grown on Pt and La0.5Sr0.5CoO3 (LSCO) buffered Pt electrodes.
Atwater, Harry A.   +5 more
core   +1 more source

A film-texture driven piezoelectricity of AlN thin films grown at low temperatures by plasma-enhanced atomic layer deposition

open access: yesAPL Materials, 2020
Simultaneously inducing preferred crystalline orientation with a strong piezoelectric response in polycrystalline aluminum nitride (AlN) thin films by atomic layer deposition is a technical challenge due to the upscaling of the integration of ...
Tai Nguyen   +6 more
doaj   +1 more source

Direct Measurement of Piezoelectric Response around Ferroelectric Domain Walls in Crystals with Engineered Domain Configuration

open access: yes, 2008
We report the first investigation of the piezoelectric response on a nanoscale in the poled ferroelectric crystals with engineered configuration of domains.
Alexei A. Bokov   +4 more
core   +1 more source

Piezoelectric effect and electroactive phase nucleation in self-standing films of unpoled PVDF nanocomposite films [PDF]

open access: yes, 2018
Novel polymer-based piezoelectric nanocomposites with enhanced electromechanical properties open new opportunities for the development of wearable energy harvesters and sensors.
Ballirano, Paolo   +6 more
core   +1 more source

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