Results 51 to 60 of about 24,824,824 (239)
Inorganic Chemistry Frontiers, 2023 Although the anomalous ferroelectric photovoltaic effect of Bismuth ferrite (BiFeO3) has recently drawn widespread attention, the very low photocurrent density and thus the poor power conversion efficiency severely hinders its...
Zehao Sun +7 more
semanticscholar +1 more source
AIP Advances, 2023 The aim of this paper is to study the electro-mechanical coupling responses of functionally graded (FG) piezoelectric cantilever nanobeam under the concentrated load, and the material properties follow an exponential distribution in the thickness ...
Zhenhai Liu, Peifeng Wang, Jiawei Xu
semanticscholar +1 more source
Journal of Materiomics, 2022 By engineering strain gradients in dielectrics, the flexoelectric effect can be created, which yields interesting physical properties via electromechanical coupling.
Zhizheng Jiang +10 more
doaj +1 more source
Flexoelectric and piezoelectric effects in micro- and nanocellulose films
Carbohydrate Polymers, 2023 In this work, we evaluated the flexoelectric and piezoelectric contributions to the overall macroscopic polarization in cellulose films. To this end, the flexoelectric μ31 and transverse effective piezoelectric e31,f coefficients of cellulose films were determined using cantilever beam bending.
Trellu, Hanna +6 more
openaire +4 more sources
Bending and Vibration Analysis of Flexoelectric Beam Structure on Linear Elastic Substrates
Micromachines, 2022 With the development of micro-nanotechnology, smart electronic devices are being updated and developed, and more and more flexoelectric sensors, actuators, and energy harvesters attached to elastic substrates have attracted a surge of interest due to ...
Maomao Zhang, Zhidong Zhou
doaj +1 more source
Flexoelectric Thin-Film Photodetectors
, 2022 The flexoelectric effect, which manifests itself as a strain-gradient-induced electrical polarization, has triggered great interest due to its ubiquitous existence in crystalline materials without the limitation of lattice symmetry.
Jiang, Zhizheng +9 more
core +1 more source
Nano letters (Print), 2021 Room-temperature ferroelectricity in two-dimensional (2D) materials is a potential for developing atomic-scale functional devices. However, as a key step for the technology implementations of 2D ferroelectrics in electronics, the controllable generation ...
Chen Chen +6 more
semanticscholar +1 more source
Acta Mechanica, 2023 This work investigates the Flamant–Boussinesq problem for a half-space made of a homogeneous and isotropic dielectric material. The dynamical flexoelectric effect and the dynamical flexocoupling between displacement and polarization, due to mechanical ...
A. R. El-Dhaba +2 more
semanticscholar +1 more source
Anomalous Dipolar Flexoelectric Effect in a Nematic Main-Chain Polymer [PDF]
, 1992 An anomalously large flexoelectric effect is predicted in the nematic phase of thermotropic main-chain polymers, which have a defined orientation of subsequent monomers bonded on the chain. We identify two different ranges of order parameters.
Petschek, Rolfe G., Terentjev, Eugene M.
core +1 more source
Energies, 2022 Both flexoelectricity and piezoelectricity belong to the electromechanical coupling effect. While piezoelectricity only exists in materials whose crystal structure is noncentrosymmetric and a pre-polarization process is necessary for ferroelectric ...
Yuanzhe Li +6 more
doaj +1 more source