Results 111 to 120 of about 5,131 (236)

Plasmon–Exciton–Driven Modulation of the Electronic and Optical Properties of MoS2 via Cayley Tree Fractal Nanostructures

open access: yesJournal of Raman Spectroscopy, EarlyView.
This work investigates the change in optical and electronic properties of monolayer MoS2 through the coupling of its excitons and a plasmonic fractal structure. The formation of the heterostructure shows significant enhancement on the edge of the fractal pattern relative to off, owing to the enhanced electric field at the edge of the branches.
Zeiad Saad   +3 more
wiley   +1 more source

Resonant X‐Ray Diffraction of Conjugated Polymers at the Selenium K‐Edge

open access: yesMacromolecular Rapid Communications, EarlyView.
Analogous to isomorphous replacement used in X‐ray crystallography studies of proteins, substituting sulfur for selenium in conjugated polymers enables resonant diffraction studies of molecular packing down to the length scale of π‐‐π stacking. Two selenium‐containing polymers are studied with a comparison made between sulfur K‐edge and selenium K‐edge
Guillaume Freychet   +6 more
wiley   +1 more source

Novel Sulfur‐Rich Polymers from Inverse Vulcanization as Functional Building Blocks for Photonics

open access: yesMacromolecular Rapid Communications, EarlyView.
Isopropenyl aromatic comonomers, in particular novel 2,7‐diisopropenylfluorene and 2,8‐diisopropenyldibenzothiophene, synthesized by sustainable, facile, single‐step SMCCR from available brominated substrates are exploited in the Inverse Vulcanization process to obtain functional Sulfur‐rich macromolecular materials.
Raimondo Insogna   +7 more
wiley   +1 more source

Chalcogen passivation: an in-situ method to manipulate the morphology and electrical property of GaAs nanowires

open access: yesScientific Reports, 2018
Recently, owing to the large surface-area-to-volume ratio of nanowires (NWs), manipulation of their surface states becomes technologically important and being investigated for various applications.
Zai-xing Yang   +10 more
doaj   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

open access: yesSmall, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong   +9 more
wiley   +1 more source

Impact of Sapphire Substrate Reconstruction on the Structural, Electronic, and Photonic Properties of MoS2

open access: yesSmall, EarlyView.
High‐temperature reconstruction of c‐plane sapphire during MOCVD growth of MoS2 fundamentally alters the optical and electronic properties of MoS2 epilayer by introducing step‐edge driven interfacial charge transfer. Raman, PL, and KPFM reveal non‐uniform doping and strain in as‐grown films, whereas transferred layers show uniform optical and ...
Riccardo Torsi   +8 more
wiley   +1 more source

Orbital‐Selective Modulation of Spatial pz‐s Hybridization for Enhanced Photocatalytic H2 Evolution: Insights From NiSe@ReS2+x Cocatalyst

open access: yesAngewandte Chemie, Volume 138, Issue 19, 4 May 2026.
Spatial orbital‐selective modulation engineering is proposed as a strategy to optimize cocatalyst design, enhance photocatalytic activity, and provide novel insights into the interactions between active sites and adsorbates, as well as catalytic mechanisms.
Duoduo Gao   +5 more
wiley   +2 more sources

Unlocking Energy Potential: Exploiting Anionic Redox Activity in Na‐Based Layered Oxides

open access: yesSmall, EarlyView.
Anionic redox in Na‐based layered oxide cathodes unlocks additional capacity beyond conventional transition‐metal redox limits, enabling high‐energy sodium‐ion batteries. This review elucidates coupled cationicanionic redox mechanisms across P2‐, O3‐, and related structural phases, while critically addressing key challenges such as voltage hysteresis ...
Neeraja Nair   +6 more
wiley   +1 more source

High‐Resolution Microlens‐Assisted Tunable n‐Type Optical Doping in Monolayer MoS2

open access: yesSmall, EarlyView.
The laser‐assisted microlens array processing (LAMP) technique enables sub‐diffraction, localized n‐type optical doping of monolayer MoS2 by utilizing self‐assembled microspheres as microlenses. Controlled sulfur vacancy formation under low‐power laser irradiation allows precise tuning of the carrier concentration.
Junil Kim   +5 more
wiley   +1 more source

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