Results 51 to 60 of about 23,268 (183)

Application of Multi-Parameter Perturbation Method to Functionally-Graded, Thin, Circular Piezoelectric Plates

open access: yesMathematics, 2020
In this study, a multi-parameter perturbation method is used for the solution of a functionally-graded, thin, circular piezoelectric plate. First, by assuming that elastic, piezoelectric, and dielectric coefficients of the functionally-graded materials ...
Xiao-Ting He   +4 more
doaj   +1 more source

Boron Nitride Monolayer: A Strain-Tunable Nanosensor

open access: yes, 2013
The influence of triaxial in-plane strain on the electronic properties of a hexagonal boron-nitride sheet is investigated using density functional theory.
A. Sadeghi   +40 more
core   +1 more source

High piezoelectricity and low strain hysteresis in PMN–PT-based piezoelectric ceramics

open access: yesJournal of Advanced Ceramics, 2023
High piezoelectric properties and low strain hysteresis (H) are both equally necessary for practical applications in precisely controlled piezoelectric devices and systems.
Jiajia Wang   +6 more
doaj   +1 more source

Origin of non-linear piezoelectricity in III-V semiconductors: Internal strain and bond ionicity from hybrid-functional density functional theory

open access: yes, 2015
We derive first- and second-order piezoelectric coefficients for the zinc-blende III-V semiconductors, {Al,Ga,In}-{N,P,As,Sb}. The results are obtained within the Heyd-Scuseria-Ernzerhof hybrid-functional approach in the framework of density functional ...
Caro, Miguel A.   +2 more
core   +1 more source

A review of mechanoluminescence in inorganic solids : compounds, mechanisms, models and applications [PDF]

open access: yes, 2018
Mechanoluminescence (ML) is the non-thermal emission of light as a response to mechanical stimuli on a solid material. While this phenomenon has been observed for a long time when breaking certain materials, it is now being extensively explored ...
Feng, Ang, Smet, Philippe
core   +2 more sources

Thermal Stability of Micro-Structured PDMS Piezo-Electrets under Various Polymeric Reticulation Ratios for Sensor Applications

open access: yesProceedings, 2017
The effect of the polymeric reticulation on the thermal stability of the piezoelectricity of a micro-structured PDMS piezo-electret was investigated. This new family of flexible piezoelectric materials with very low Young’s modulus is used for wearable ...
Achraf Kachroudi   +2 more
doaj   +1 more source

Towards a bulk theory of flexoelectricity

open access: yes, 2010
Flexoelectricity is the linear response of polarization to a strain gradient. Here we address the simplest class of dielectrics, namely elemental cubic crystals, and we prove that therein there is no extrinsic (i.e.
J. D. Jackson   +2 more
core   +1 more source

Inversion of the exciton built-in dipole moment in In(Ga)As quantum dots via nonlinear piezoelectric effect

open access: yes, 2017
We show that anisotropic biaxial stress can be used to tune the built-in dipole moment of excitons confined in In(Ga)As quantum dots up to complete erasure of its magnitude and inversion of its sign.
Aberl, Johannes   +8 more
core   +1 more source

Piezoelectricity of green carp scales

open access: yesAIP Advances, 2017
Piezoelectricity takes part in multiple important functions and processes in biomaterials often vital to the survival of organisms. Here, we investigate the piezoelectric properties of fish scales of green carp by directly examining their morphology at ...
H. Y. Jiang   +4 more
doaj   +1 more source

Role of Extrinsic Contribution to Temperature Stability of Piezoelectricity for (K,Na)NbO3-(Bi,M)ZrO3 Ceramics with Morphotropic Phase Boundary

open access: yesEnergies, 2020
Temperature stability of dielectric, ferroelectric, and piezoelectric properties were investigated in situ by choosing (K,Na)NbO3-(Bi,K)ZrO3 (KNN-BKZ), (K,Na)NbO3-(Bi,Na,K,Li)ZrO3 (KNN-BNKLZ), and (K,Na)NbO3-(Bi,Li)ZrO3-(KNN-BLZ) as representative ...
Gyoung-Ja Lee, Min-Ku Lee
doaj   +1 more source

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