Results 21 to 30 of about 216,198 (338)

Photoresponsive Piezoelectrics [PDF]

open access: yesFrontiers in Materials, 2021
Most piezoelectric materials are not interactive with visible light, meaning that their band gaps are beyond the photon energies of the visible part of the light spectrum. The first narrow band gap (1.1 eV, the same as silicon) ferroelectric material based on the oxide perovskite structure has been achieved by doping Ni on the B-sites of KNbO3 and ...
openaire   +3 more sources

Piezoelectric Accelerator [PDF]

open access: yesScientific Reports, 2018
AbstractHere we propose the conception of small-size piezoelectric accelerator of charged particles that operates due to the piezoelectric effect at varying mechanical force applied to piezoelectrics in vacuum. The accelerating voltage and the energy of accelerated particles are estimated.
O. O. Ivashchuk   +6 more
openaire   +2 more sources

Molecular engineering of piezoelectricity in collagen-mimicking peptide assemblies

open access: yesNature Communications, 2021
Realization of a self-assembled, nontoxic and eco-friendly piezoelectric device with high-performance, sensitivity and reliability is highly desirable to complement conventional inorganic and polymer based materials.
Santu K Bera   +12 more
semanticscholar   +1 more source

Piezoelectricity in Polyacrylonitrile [PDF]

open access: yesPolymer Journal, 1984
The piezoelectric and related properties in ion-doped (NH4NO3, NaNO3) and undoped films of polyacrylonitrile have been measured as a function of temperature. The piezoelectric constants of both ion-doped and undoped films reach a maximum around 80°C and thereafter decrease markedly with temperature.
Ueda, H., Carr, S. H.
openaire   +1 more source

Out-of-Plane Piezoelectricity and Ferroelectricity in Layered α-In2Se3 Nanoflakes. [PDF]

open access: yesNano letters (Print), 2017
Piezoelectric and ferroelectric properties in the two-dimensional (2D) limit are highly desired for nanoelectronic, electromechanical, and optoelectronic applications.
Yu Zhou   +11 more
semanticscholar   +1 more source

Measurement of Flexoelectric Effect in Lead Zirconate Titanate Ceramics

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2011
Lead zirconate titanate (PZT) ceramics is usually used as a piezoelectric material. However it has characteristics of not only piezoelectricity but also flexoelectricity.
Nobuhiko HENMI, Masaki TOHYAMA
doaj   +1 more source

Functionalized Wood Veneers as Vibration Sensors: Exploring Wood Piezoelectricity and Hierarchical Structure Effects

open access: yesACS Nano, 2022
Functional wood materials often rely on active additives due to the weak piezoelectric response of wood itself. Here, we chemically modify wood to form functionalized, eco-friendly wood veneer for self-powered vibration sensors. Only the piezoelectricity
Farsa Ram   +4 more
semanticscholar   +1 more source

Multilayered Electrospun/Electrosprayed Polyvinylidene Fluoride+Zinc Oxide Nanofiber Mats with Enhanced Piezoelectricity

open access: yesMacromolecular Materials and Engineering, 2023
Electrospun polyvinylidene fluoride (PVDF) nanofibers have been widely used in the fabrication of flexible piezoelectric sensors and nanogenerators, due to their excellent mechanical properties.
Sheyda Mirjalali   +8 more
doaj   +1 more source

Ferroelectricity in glycine: A mini-review

open access: yesFrontiers in Materials, 2022
Glycine is the simplest natural amino acid, a basic building block for various biomaterials. Supramolecular packing of glycine molecules into three main crystalline polymorphs allows controlling their functional properties, such as piezoelectricity and ...
Pavel S. Zelenovskii   +4 more
doaj   +1 more source

(K,Na)NbO3-based lead-free ceramics with enhanced temperature-stable piezoelectricity and efficient red luminescence

open access: yesJournal of Advanced Ceramics, 2023
There has been a surge of research interest in the promising lead-free potassium−sodium niobate (KNN)-based ceramics, applications of which could be significantly promoted by improving thermal stability of piezoelectricity.
Qing Liu   +3 more
doaj   +1 more source

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