Results 121 to 130 of about 25,440 (253)

Topological Photonic Devices and Circuits at Terahertz Frequencies

open access: yesLaser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor   +3 more
wiley   +1 more source

Chemically‐Linked Heterostructures of Palladium Nanosheets and 2H‐MoS2

open access: yesSmall, EarlyView.
The photoresponse of MoS2 devices is extended to the near‐infrared region (up to 1700 nm) through chemical connection to Pd nanosheets (PdNS). A maleimide is used for covalent connection to MoS2, and a phenyl bromide moiety for linkage to the PdNS. In the absence of the chemical linker, van der Waals heterostructures show poorer enhancement of the ...
Ramiro Quirós‐Ovies   +12 more
wiley   +1 more source

Multichannel Analysis of Surface Waves for Soil Site Characterization

open access: yes, 2019
Shear wave velocity is a fundamental parameter in soil dynamics and geotechnical earthquake engineering. The Multichannel Analysis of Surface Waves (MASW) method is a relatively new non-invasive technique to evaluate the near-surface shear wave velocity profile by utilizing the dispersive properties of surface waves in a heterogeneous medium.
openaire   +1 more source

Ultra‐Uniform Lithium‐Ion Transport Enabled by Supramolecular Polymeric Networks as Artificial Solid Electrolyte Interphase Layers for Highly Stable Lithium‐Ion Battery Anodes

open access: yesSmall, EarlyView.
Incorporation of p‐phenylenediamine (pPD) into the polymer–pPD supramolecular artificial SEI reduces the activation energy for Li‐ion desolvation at the interface and promotes Li‐ion transport through the layer, thereby ensuring uniform delivery of Li‐ion into the SCN and stable cycling performance regardless of the inherently uneven thickness of the ...
Jeong Won Ho   +14 more
wiley   +1 more source

Multichannel Photoluminescence of Graphene Quantum Dots Across Femtosecond to Cryogenic Timescales

open access: yesSmall, EarlyView.
This study reveals how graphene quantum dots emit light across all relevant timescales, from femtoseconds to cryogenic steady states. By integrating optical Kerr gating, time‐correlated single‐photon counting, and low‐temperature photoluminescence, distinct intrinsic, surface, and defect‐related emission channels are temporally and spectrally ...
Hanna Song   +8 more
wiley   +1 more source

Gold@MnFe‐Prussian Blue Analog Yolk@Shell Nanoparticles for Light‐Triggered and pH‐Sensitive Drug Release

open access: yesSmall, EarlyView.
ABSTRACT Yolk@shell nanostructures have emerged as promising platforms for biomedical applications due to their unique architecture, which combines the high surface area and loading capacity of hollow nanoparticles with the structural stability and functional versatility of core@shell systems. In this work, we report the synthesis of multifunctional Au@
Shoaib Azeem   +4 more
wiley   +1 more source

Ion‐Regulating SPEEK–BNNS Hybrid Interfaces Enabling Low‐Barrier Zn‐Ion Transport and Dendrite‐Free Zinc Anodes

open access: yesSmall, EarlyView.
A scalable organic–inorganic hybrid protective layer composed of sulfonated poly(ether ether ketone) and boron nitride nanosheets is introduced to stabilize Zn‐metal anodes. The hybrid architecture regulates Zn2+ transport, suppresses dendrite growth, and mitigates parasitic reactions, enabling uniform Zn deposition and long‐term stable cycling in ...
Minseo Kim   +6 more
wiley   +1 more source

Neutron reflectometry instrumentation at the ISIS source: current state

open access: yesJournal of Applied Crystallography, EarlyView.
This article presents the current capabilities of the four time‐of‐flight neutron reflectometers at the ISIS Neutron and Muon Source, highlighting recent advances in instrumentation, automation and data analysis that enable high‐precision studies of interfacial structures across diverse scientific fields.Neutron reflectometry (NR) at the ISIS Neutron ...
Mario Campana   +8 more
wiley   +1 more source

Identifying the pre‐Odra river system with hydroacoustic and seismic reflection imagery offshore Rügen Island, southern Baltic Sea

open access: yesBoreas, EarlyView.
Understanding the course and dynamics of ancient river systems, such as the pre‐Odra, provides valuable insights into the post‐glacial evolution of landscapes and riverine processes. The northwest‐trending pre‐Odra was an important drainage system of the European mainland into the Baltic Basin during and after the Scandinavian Ice Sheet retreat ...
Maryse C. Schmidt   +4 more
wiley   +1 more source

Refined Division of Sleep Stages in the Mouse Based on Distributed Deep Electrodes and Underlying Infra‐Slow Oscillation

open access: yesJournal of Sleep Research, EarlyView.
ABSTRACT The mouse sleep is mostly recorded with only epidural electrodes and divided simply into NREM and REM stages. With the help of distributed intracerebral triplet electrodes, we searched for possible new electrophysiological signatures to characterise more specific sleep substages within the timeframe of seconds to tens of minutes.
Nanxiang Jin   +8 more
wiley   +1 more source

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