Strain gradient induced electric polarization in α-phase polyvinylidene fluoride films under bending conditions
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TLDR
In this paper, the relationship between the applied elastic strain gradient and the induced electric polarization in the α-phase polyvinylidene fluoride films under bending conditions was investigated, and it was shown that the flexoelectric polarization is linearly proportional to the strain gradient.Abstract:
The relationship between the applied elastic strain gradient and the induced electric polarization in the α-phase polyvinylidene fluoride films under bending conditions has been investigated. Our experimental studies have shown that the flexoelectric polarization is linearly proportional to the strain gradient and the corresponding direct flexoelectric response is strong. It is reasonable to believe that the physical mechanisms behind the flexoelectric effects in polymers and solid dielectrics are different.read more
Citations
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Flexoelectric Effect in Solids
TL;DR: Flexoelectricity is a universal effect allowed by symmetry in all materials as discussed by the authors and has been studied in many nanoscale systems, and potential applications of this electromechanical phenomenon have been discussed.
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Flexoelectric nano-generator: Materials, structures and devices
TL;DR: Flexoelectricity, as a fundamental electromechanical coupling effect between electric polarization and mechanical strain gradient, exists in various categories of materials including solid materials, liquid crystals, polymers, and biomembranes as discussed by the authors.
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Flexoelectricity in solids: Progress, challenges, and perspectives
TL;DR: The flexoelectricity describes the contribution of the linear couplings between the electric polarization and strain gradient and between polarization gradient and strain to the thermodynamics of a solid as discussed by the authors.
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Flexoelectricity in soft materials and biological membranes
TL;DR: In this article, a nonlinear theoretical framework for flexoelectricity in soft materials was developed, using the concept of soft electret materials, and illustrate an interesting nonlinear interplay between the so-called Maxwell stress effect and flexo-lectrics.
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Flexoelectricity in several thermoplastic and thermosetting polymers
Baojin Chu,David R. Salem +1 more
TL;DR: In this paper, the dielectric polarization response under bending deformation of polymer cantilevers was investigated and the flexoelectricity of several thermoplastic and thermosetting polymers was investigated.
References
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Journal ArticleDOI
Piezoelectric Effects in Liquid Crystals
TL;DR: In this paper, a theory of the relationship between curvature strains and electric polarization in liquid crystals is developed in analogy to piezoelectric theory in ordinary crystals, which may explain some recently observed phenomena in nematic liquid crystals.
Journal ArticleDOI
Piezoelectricity and flexoelectricity in crystalline dielectrics
TL;DR: This work has shown that not only the intensity of the response of the immune system to carbon dioxide but also its ability to reprogram theresponse of the nervous system to accommodate high levels of carbon dioxide.
Journal ArticleDOI
Flexoelectric polarization of barium strontium titanate in the paraelectric state
Wenhui Ma,L. Eric Cross +1 more
TL;DR: In this paper, the strain-gradient-induced polarization (flexoelectric effect) was investigated in Ba0.67Sr0.33TiO3 (BST) ceramic at temperatures above the 21 °C Curie point.
Journal ArticleDOI
Strain-gradient-induced electric polarization in lead zirconate titanate ceramics
Wenhui Ma,L. Eric Cross +1 more
TL;DR: In this article, the authors investigated the effect of strain gradient on flexoelectricity in unpoled soft lead zirconate titanate (PZT) ceramic.
Journal ArticleDOI
Observation of the flexoelectric effect in relaxor Pb(Mg1/3Nb2/3)O3 ceramics
Wenhui Ma,L. Eric Cross +1 more
TL;DR: In this paper, the relationship between elastic strain gradient and electric polarization was investigated in the relaxor ferroelectric lead magnesium niobate ceramic, and it was shown that flexoelectric polarization is linearly proportional to the applied strain gradient.
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