Results 81 to 90 of about 782 (181)

Microbial autotrophy driven by extracellular electrons generated from mechanical forces via flexoelectricity

Nature Communications
Mechanical force has recently emerged as a microbial energy source through direct mechanical-to-electrical energy conversion. However, the flexoelectric effect, a universal mechanoelectrical coupling phenomenon, remains underexplored as an energy source ...
Yue Lai, Jiaojiao Wang, Guoping Ren, Yong Yuan, Shungui Zhou   +4 more
doaj   +1 more source

Flexoelectricity in nematic domain walls

Physical Review E, 2008
Flexoelectric effects are studied in the domain walls of a nematic liquid crystal device showing the Freedericksz transition. Walls parallel to the alignment direction have a strong twist distortion and an electro-optic effect dominated by e1-e3 is seen.
openaire   +2 more sources

Static and free vibration responses of nanobeams considering flexoelectricity and surface effect

AIP Advances
In this paper, the electro-mechanical behavior of a flexoelectric nanobeam, considering the surface effect, is studied with an induced electric potential.
Zhuorui Liu, Zhidong Zhou
doaj   +1 more source

Flexoelectric Instability in Bent-Core Nematic Liquid Crystals

Crystals
We develop a theoretical model for the flexoelectric instability in bent-core nematic liquid crystals, focusing on the coupling between elastic distortions and an external electric field through flexoelectric polarization.
Ahlam Almamari, Mikhail Osipov
doaj   +1 more source

Flexoelectric Effect in Biaxial Nematics

Acta Physica Polonica A, 2012
The flexoelectric (FE) effect provides a linear coupling between electric polarization and orientational deformation in liquid crystals. It influences many electrooptical phenomena and it is used in some bistable nematic devices. A statistical theory of dipole FE polarization in biaxial nematic liquid crystals is used to calculate temperature ...
openaire   +2 more sources

Influence of Flexoelectric Coupling and Interfacial Imperfection on Shear Horizontal Wave Propagation in a Piezoflexoelectric Layer over an Elastic Substrate

Mathematics
This study analytically investigates shear horizontal (SH) wave propagation in a layered structure consisting of a piezoflexoelectric (PFE) layer bonded to an elastic substrate, considering an imperfect interface.
Ayman Alneamy, Kulandhaivel Hemalatha, Mohammed Tharwan   +2 more
doaj   +1 more source

Self-powered tunable photodetection via flexoelectric engineering of single-phase 2HMoS2

Journal of Materiomics
Two-dimensional (2D) molybdenum disulfide (MoS2) has shown considerable potential for photodetection, yet existing MoS2-based photodetectors require either external voltage bias or complex heterojunctions.
Junxi Yu, Yuan Zhang, Songjie Yang, Chunlin Song, Shiyao Xu, Boyuan Huang, Qingyuan Wang, Jiangyu Li   +7 more
doaj   +1 more source

Topological transition from a hopfion to a toron via flexoelectric self-polarization in chiral liquid crystals

Physical Review Research
The presence of topological defects in apolar chiral liquid crystals causes orientational distortions, leading to nonuniform strain. This nonuniform strain generates an electric polarization response due to the flexoelectric effect, which induces an ...
Paul Leask
doaj   +1 more source

Flexoelectric MEMS

Piezoelectricity and flexoelectricity are two independent but not incompatible forms of electromechanical response exhibited by nanoscale ferroelectrics. Here, we show that flexoelectricity can either enhance or suppress the piezoelectric response of the cantilever depending on the ferroelectric polarity and lead to a diode-like asymmetric (two-state ...
Bhaskar, Umesh K., Banerjee, N., Abdollahi, Amir||, Solanas, E., Rijnders, G., Catalan, Gustau||   +5 more
openaire   +1 more source

Harnessing atomic-scale order at grain boundaries for giant flexoelectricity. [PDF]

Sci Adv
Liu C, Li Y, Zhang J, Ma Y, Han J, Xu D, Li P, Sun Y.   +7 more
europepmc   +1 more source