Results 81 to 90 of about 5,879,520 (259)

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar   +5 more
wiley   +1 more source

Emerging Perovskite Solar Cells for Building‐Integrated Photovoltaic Applications

open access: yesInformation &Functional Materials, EarlyView.
In this review, we discuss technological approaches of perovskite solar cells that are highly compatible with the requirements of building‐integrated photovoltaic applications, including semi‐transparent, colorful, and flexible perovskite solar cells.
Yongke Liang   +4 more
wiley   +1 more source

Fractional Chern mosaic in supermoiré graphene

open access: yesPhysical Review Research
We propose the realization of a fractional Chern mosaic: a state characterized by a spatially varying topological order. This arises in trilayer graphene with small sequential twist angles, where a large supermoiré lattice emerges alongside conventional ...
Yves H. Kwan   +2 more
doaj   +1 more source

What are the possible moiré patterns of graphene on hexagonally packed surfaces? Universal solution for hexagonal coincidence lattices, derived by a geometric construction

open access: yesNew Journal of Physics, 2014
We present a systematic investigation of two coinciding lattices and their spatial beating frequencies that lead to the formation of moiré patterns. A mathematical model was developed and applied for the case of a hexagonally arranged adsorbate on a ...
Patrick Zeller, Sebastian Günther
doaj   +1 more source

Coherence evaluation and first demonstration of multi-contrast X-ray computed tomography on NanoTerasu BL09W with an X-ray Talbot interferometer. [PDF]

open access: yesJ Synchrotron Radiat
Coherence properties were evaluated and multi‐contrast X‐ray computed tomography was demonstrated using an X‐ray Talbot interferometer on the NanoTerasu beamline BL09W. The results confirm the high spatial coherence and imaging performance of the source, paving the way for advanced X‐ray phase imaging.We report on the coherence evaluation of the ...
Ueda R   +14 more
europepmc   +2 more sources

Optoelectronic synapses based on two‐dimensional transition metal dichalcogenides for neuromorphic applications

open access: yesInfoScience, EarlyView.
This review first introduces the fundamental concepts of artificial synapses and synaptic plasticity, then discusses the device structures and operation mechanisms of optoelectronic synapses based on two‐dimensional transition metal dichalcogenides, highlights their applications in neuromorphic vision systems and computing, and concludes with key ...
Xiaona Sun   +3 more
wiley   +1 more source

On-axis structured beams generation via moiré and Mie resonant metallo-dielectric moiré gratings

open access: yesScientific Reports
Structured beams carrying orbital angular momentum have been generated conventionally using spiral phase plates, fork gratings, and metasurfaces.
Anil Ringne   +2 more
doaj   +1 more source

Strong interfacial charge transfer from CrSBr induces extreme hole doping and quantum‐Hall states in graphene heterostructures

open access: yesInfoScience, EarlyView.
Magnetic van der Waals semiconductors offer unique opportunities to integrate spin and charge degrees of freedom in atomically thin devices. We fabricate dual‐gated heterostructures consisting of exfoliated CrSBr and monolayer graphene with Hall measurement revealing robust heavy p‐doping of graphene and signals of h‐BN/graphene moiré superlattices ...
Ziqi Liu   +8 more
wiley   +1 more source

Emerging single‐element ferroelectrics: From theory to experiment

open access: yesInfoMat, EarlyView.
This review explores recent developments in single‐element ferroelectrics, covering mechanisms of ferroelectric behavior, their crystal structures, key preparation methods, ferroelectric performance characteristics, and promising device applications in field‐effect transistors, photodetectors, and visual perceptrons.
Run Zhao   +7 more
wiley   +1 more source

Interface-Engineered Bi<sub>0.5</sub>Sb<sub>1.5</sub>Te<sub>3</sub>/WSe<sub>2</sub> Heterostructures for Enhanced Thermoelectric Performance. [PDF]

open access: yesSmall
BST/WSe2 heterostructures grown by pulsed laser deposition exhibit semicoherent van der Waals interfaces, characterized by lattice strain, compressed gaps, and localized moiré patterns. These interfacial features modulate carrier generation and energy filtering, yielding high Seebeck coefficients and a consistently high power factor above 50 µW cm−1 K ...
Giri K, Wang YL, Wu YT, Chen CH.
europepmc   +2 more sources

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