Results 201 to 210 of about 18,249 (302)

Efficient Hot Carrier Management in Lead Halide Perovskite Micro‐Disks Revealed by Super‐Diffusive Migration

Advanced Science, EarlyView.
Hot‐carrier transport in metal halide perovskites is investigated using spatiotemporally‐resolved photoluminescence microscopy. Mesa‐shaped MAPbBr3 microdisks exhibit anomalous super‐diffusive carrier propagation on nanosecond timescales, driven by hot‐carrier stabilization and strong carrier–phonon coupling.
Nithin Pathoor, Shun Omagari, Martin Vacha   +2 more
wiley   +1 more source

Revival of Layered Ferroelectrics in Thin Films. [PDF]

Small Sci
Gradauskaite E.
europepmc   +1 more source

Real‐Time Ferroelectric Domain Wall Dynamics During Electric Poling and Depoling

Advanced Science, EarlyView.
Real‐time visualization of domain wall dynamics during alternating‐current poling, direct‐current poling, and electrical depoling in relaxor‐PT ferroelectric single crystals reveals distinct field‐dependent pathways and strong path dependence. Instant polarized light microscopy uncovers reversible domain wall nucleation, motion, and reconfiguration ...
Ziqi Wang, Zhengze Xu, Anastasia Timofeeva, Hossam Elnaggar, Sipan Liu, Yusen Pei, Reece Henry, Brendan O'Connor, Eunkyoung Shim, Franky So, Kara Peters, Xiaoning Jiang, Jun Liu   +12 more
wiley   +1 more source

A Metal-Free Molecular Ferroelectric With Large Piezoelectricity and Its Porous Composite for Superior Output Power Density. [PDF]

Adv Sci (Weinh)
Chen N, Wei W, Ye L, Wan L, Wei Y.
europepmc   +1 more source

Diffusion-Model-Driven Discovery of Ferroelectrics for Photocurrent Applications. [PDF]

Adv Sci (Weinh)
Yeo BC, Lee HJ, Kang S, Lee JH.
europepmc   +1 more source

Hydrogen‐Stabilized Self‐Rectifying Memristor Arrays for Reliable Multilevel Synapses in Transformer‐Based Keyword Spotting

Advanced Science, EarlyView.
A non‐filamentary self‐rectifying HfO2/TiOx resistive random‐access memory integrates H2 annealing with an incremental step pulse with verify algorithm to achieve stable and linear analog conductance modulation. The device enables low‐current 6‐bit multilevel operation while suppressing sneak current in crossbar arrays. Implemented in Transformer‐based
Seonjeong Lee, Seohyeon Ju, Won Joo Lee, Myounggon Kang, Sungjun Kim, Yoon Kim   +5 more
wiley   +1 more source

Grain Size-Dependent Defect and Domain Evolution in Lead Titanate-Based Relaxor Ferroelectrics. [PDF]

ACS Appl Mater Interfaces
Zhang H, Wang Y, Li Z, Oh S, Liu J, Yan H, Hao Y, Su L.   +7 more
europepmc   +1 more source

Stretchable, Tough, and Luminescent Perovskite Molecular Ferroelectric Composite: Empowering Reliable Self‐Powered Motion Sensing in High Humidity and Subzero Temperatures

Advanced Science, EarlyView.
A flexible molecular ferroelectric composite is fabricated via in situ growth of luminescent DMAA‐MnCl3 ferroelectric crystals within a SEBS/SIS double‐polymer matrix. It delivers 7.54 MPa tensile strength, over 1200% tensile strain, durable piezoelectric motion sensing, and excellent harsh‐environment stability for all‐weather wearable biomechanical ...
Shuangqing Li, Zhe‐Kun Xu, Zheng Xing, Jin‐Wang Liu, Yong‐Quan Wu, Peng‐Fei Li, Zhong‐Xia Wang   +6 more
wiley   +1 more source

Giant photostriction rate for remote opto-ultrasonic structural health monitoring. [PDF]

Nat Commun
Yin J, Yang Y, Shi X, Zhao C, Lin C, Tao H, Zhang Y, Lim DBK, Jiang C, Lei L, Song Y, Wu H, Ding X, Sun J, Li F, Wu J, Yao K.   +16 more
europepmc   +1 more source

Exploiting Bulk Photovoltaic Effect in a Polar Hybrid Perovskite Towards Self‐Powered Detection of Weak Ultraviolet Polarized Light

Advanced Science, EarlyView.
Benefiting from intrinsic polarization, DJ‐type 2D perovskite crystals deliver self‐powered polarization‐resolved photocurrent under weak polarized UV light via the bulk photovoltaic effect, showing a high anisotropic factor of 8. ABSTRACT Weak light detection is essential for achieving high‐performance photodetectors with minimal power consumption ...
Xinyuan Zhang, Jianbo Wu, Wai‐Yeung Wong   +2 more
wiley   +1 more source