Results 241 to 250 of about 142,351 (318)

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

Advanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang, Geng Huangfu, Hongjie Zhang, Tiannan Yang, Zhenhua Ma, Jingsheng Chen, Yun Liu, Yiping Guo   +7 more
wiley   +1 more source

A Biomimetic Tympanic Cavity PVDF Hydrophone for Low-Frequency Bioacoustic Monitoring in Marine Aquaculture. [PDF]

Sensors (Basel)
Hou T, Piao Z, Wang Y, Xin Y.
europepmc   +1 more source

Local Polarization Unit Engineering Enables Ultrahigh Energy Density in NBT‐Based High‐Entropy Ceramic Capacitors

Advanced Science, EarlyView.
Herein, we demonstrate a breakthrough in dielectric energy storage by engineering local polarization units in high‐entropy multilayer ceramic capacitors (MLCCs). The optimized MLCCs achieve an ultrahigh recoverable energy density of 18.2 J cm−3 with 91% efficiency, coupled with exceptional thermal stability and fatigue resistance.
Shiyu Zhou, Yucheng Zhou, Linhai Li, A. Pelaiz‐Barranco, Xuefeng Chen, Genshui Wang, Yiwei Chen, Rongjiang Wang, Konstantin Nefedev, Tengfei Hu, Dawei Wang, Tongqing Yang   +11 more
wiley   +1 more source

Solar-mechanical H₂O₂ production powered by defect dipole polarization in a nonpolar semiconductor. [PDF]

Sci Adv
Chen C, Ni J, Wang P, Gu K, Yan S, Ao Y.
europepmc   +1 more source

Toward Long‐Term Reliable Human‐Machine Interaction: A Flexible, Breathable, and Self‐Powered Pressure Sensor System With Firefighting Validation

Advanced Science, EarlyView.
This work develops a breathable potentiometric self‐powered pressure sensor with good wearability, using a non‐woven fabric substrate and hydrogel electrolyte. The sensor is integrated into a five‐channel smart glove to acquire reliable hand motion signals, which are processed by a CNN for identity verification and smart vehicle control in human ...
Qilong Zhang, Zhao Yao, Jiaxu Liu, Yuxuan Hou, Zhongtao Zhang, Jingwei Xue, Leonid Chernogor, Nam Young Kim, Eun Seong Kim, Yuanyue Li, Yang Li   +10 more
wiley   +1 more source

Occlusion-activated autonomous piezoelectric implants for adaptive prevention of peri-implantitis. [PDF]

Nat Commun
Chen A, Li K, Li Y, Fan C, Zhang Z, Liu Y, Su J, Shi Y, Cui H, Liu K, Shi Y, Zhang Z, Yan C, Lu J.   +13 more
europepmc   +1 more source

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

Advanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Electromechanical Coupling Analysis of a Piezoelectric-Flexoelectric-Semiconductor Cantilever Beam. [PDF]

Micromachines (Basel)
Su Y, Wu X, Zhou Z.
europepmc   +1 more source

Large‐Scale Growth of Self‐Poled Ferroelectric Rashba Semiconductor α‐GeTe(111) Thin Films: A Crucial Step Towards Future CMOS‐Compatible Ferroelectric Spintronic Devices

Advanced Science, EarlyView.
Ferroelectric Rashba semiconductors promise ultralow‐power devices but lack industry‐quality films. This work demonstrates CMOS‐compatible fabrication of high‐quality α‐GeTe(111) films via magnetron sputtering, enabled by a 5 nm Sb2Te3 seed layer. Structural and ferroelectric analyses show robust, switchable polarization comparable to MBE films, paving
Jules Lagrave, Nicolas Bernier, Thomas Jalabert, Yoann Brûlé, Damien Térébénec, Pierre Meilleur, Hervé Roussel, Jean‐Baptiste Dory, Oussama J. Mouawad, Thibault Chommaux, Cristian Mocuta, Dominique Thiaudière, Laurent Vila, Françoise Hippert, Pierre Noé   +14 more
wiley   +1 more source

A Drive-Vibration Integrated Piezoelectric Actuator for Flexible Electrode Implantation. [PDF]

Micromachines (Basel)
Li X, Wu D, Lin X, Jiang T, Ma J, Li Y, Hu Y, Wang Y, Zhong H, Yang X, Li J, Wen J.   +11 more
europepmc   +1 more source