Results 221 to 230 of about 25,634 (258)

Freestanding Polymer Metasurface Supporting Higher-Order Optical Resonances for Strong Field Enhancement in TMD Monolayers. [PDF]

open access: yesSmall
Deng CZ   +10 more
europepmc   +1 more source

Micro‐ and Nanopatterning of Highly Conductive PEDOT Thin Films

open access: yesMacromolecular Rapid Communications, EarlyView.
This work presents micro‐ and nanoscale fabrication strategies for organic thin‐film devices using non‐commercial PEDOT synthesized by V2O5‐mediated oxidative polymerization. Optimized films show controlled thickness and tunable conductivity. At the nanoscale, nanosphere lithography enables large‐area hexagonally packed PEDOT nanopillar arrays down to ...
Francesco Bisio   +8 more
wiley   +1 more source

An Adaptive Metasurface for Adjustable Magnetic Resonance Imaging Enhancement at 3 T and 7 T: A Feasibility Study

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field (≥ 7 T) and 3 T MRI suffer from B1+ inhomogeneity and signal loss. Conventional metasurfaces that mitigate B1+ inhomogeneity and improve image SNR are “fixed” in nature and designed for a single Larmor frequency. This study demonstrates the feasibility of an adaptive metasurface utilizing voltage‐controlled capacitors ...
Paul S. Jacobs   +7 more
wiley   +1 more source

Metasurface-controlled high-speed tunable external cavity lasers. [PDF]

open access: yesSci Adv
Basiri Z   +4 more
europepmc   +1 more source

Wear‐Activated Surface Engineering of Thermoplastic Polyurethane/Graphene Nanoplatelet Nanocomposites for Ice Friction Control

open access: yesPolymer Composites, EarlyView.
Wear‐activated surface engineering of TPU/GNP nanocomposites through improved filler dispersion and interfacial anchoring of functionalized graphene nanoplatelets, leading to finer post‐abrasion textures and enhanced ice traction. ABSTRACT Graphene‐reinforced thermoplastic polyurethane (TPU) composites offer a promising route for developing ...
Sara Zahmatkesh   +2 more
wiley   +1 more source

Dielectric elastomer films with programmed deformation and multifunctionality enabled by patterned electrophoresis of magnetic additive. [PDF]

open access: yesSci Adv
Dong H   +13 more
europepmc   +1 more source

Multi‐Scale Engineering of Photonic Meta‐Structures With Emergent Optical Resonances via Colloidal Crystal Engineering With DNA and Microwell Templates

open access: yesSmall, EarlyView.
This work presents a bottom‐up strategy for forming meta‐structures built from DNA‐assembled nanoparticle superlattices, establishing a versatile platform for multiscale photonic materials design. Confinement stabilizes non‐equilibrium crystal habits and enables geometry and mode control independent of lattice symmetry.
Alexa M. Wong   +8 more
wiley   +1 more source

Space-Time Coding Conformal Metasurfaces for Multifrequency Beam Steering and Shaping. [PDF]

open access: yesAdv Mater
Pepe F   +8 more
europepmc   +1 more source

Thermal Instability Pathways of Aluminum‐Based Nanocomposites: The Role of Alloying‐Element‐Driven Precipitation and Amorphous Interlayers

open access: yesSmall, EarlyView.
Thermal instability mechanisms governing novel Al‐based PVD/ALD nanocomposites are uncovered through synchrotron XRD, STEM, APT, and micromechanical testing. Temperature‐dependent crystallite evolution reveals a defined stability window before degradation dominates, offering new insight into the design of thermally robust, functional Al‐based ...
Hendrik C. Jansen   +10 more
wiley   +1 more source

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