Results 141 to 150 of about 2,765 (307)

A multilayer WSe₂–graphene plasmonic architecture for polarization-insensitive and machine learning–optimized glucose detection in the terahertz regime

open access: yesSensing and Bio-Sensing Research
The development of advanced biosensing technologies has been prompted by the increasing global diabetes prevalence and the necessity for non-invasive glucose monitoring in real-time.
K. Vijayakumar   +4 more
doaj   +1 more source

Polarization‐Enabled Piezoelectric Tellurium–Selenium (TexSe1–x) Thin Films for Memory Switching and Artificial Synaptic Functions

open access: yesAdvanced Science, EarlyView.
Here, we demonstrate and investigate polarization‐enabled electromechanical responses in cryogenic physical vapor deposition (cryogenic PVD)‐deposited TexSe1‐x thin films, a tellurium‐based compound with a tunable bandgap and enhanced non‐centrosymmetry.
Chia‐Chen Chung   +16 more
wiley   +1 more source

Micromachined 38 GHz cavity resonator and filter with rectangular-coaxial feed-lines

open access: yes, 2009
Micromachined, multilayer cavity resonators and filters at 38 GHz are demonstrated. Each layer is made of gold-coated silicon, structured by deep reactive etching.
Wang, Yi   +5 more
core   +1 more source

Blue‐Emitting ZnSe(Te) Quantum Dots and Light‐Emitting Diodes

open access: yesAdvanced Science, EarlyView.
 . ABSTRACT Zn‐based quantum dots (QDs) have been regarded as the most promising Cd‐free candidates for blue‐emitting applications. ZnSe QDs exhibit an ultra‐narrow full width at half maximum (FWHM), high photoluminescence quantum yield (PLQY), and excellent environmental stability, making them ideal for blue‐violet emitters.
Lijin Wang, Aiwei Tang, Jingbi You
wiley   +1 more source

Compact 3D monolithic microwave integrated circuit bandpass filter based on meander resonator for 5G millimeter-wave

open access: yes
Bandpass filters for millimeter-wave band applications are typically designed using resonators. However, the design of a multilayer coplanar waveguide (CPW) monolithic microwave integrated circuit (MMIC) bandpass filter for 5G millimeter-wave band, n257 ...
Sinulingga, Emerson Pascawira   +1 more
core   +1 more source

Reconfigurable multilayer dual-mode bandpass filter based on memristive switch

open access: yes, 2018
© 2018 Elsevier GmbH A novel memristor-based multilayer dual-mode resonator is presented, which is suitable for the design of reconfigurable multi-band filters. The memristor is used as an RF/microwave switch. A dual-band bandpass filter is realized with
Potrebic, Milka   +2 more
core   +1 more source

Epitaxial Stabilization of Ultrasmall Cu Nanoparticles With High‐Energy {110} Facets on Ti3C2 MXene for Efficient CO2‐to‐Acetate Electrocatalysis

open access: yesAdvanced Science, EarlyView.
Cu/Ti3C2 heterostructure: Cu/Ti3C2 heterostructure achieves epitaxial stabilization of high‐energy Cu(110) facets through lattice matching and electronic interaction, enabling efficient CO2 electroreduction to acetate with 42.5% Faradaic efficiency at 235 mA·cm−2. ABSTRACT The electrochemical CO2 reduction reaction (CO2RR) to multicarbon (C2+) products
Yan‐An Li   +10 more
wiley   +1 more source

Programmable Hydration Pathways Enable Reconfigurable Ionic Thermoelectrics for Energy Harvesting and Thermal‐Tactile Interaction

open access: yesAdvanced Science, EarlyView.
Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley   +1 more source

A high efficiency wideband co‐polarised metalens antenna

open access: yesIET Microwaves, Antennas & Propagation
The traditional co‐polarised metasurface achieves 360° phase coverage only at the resonant frequency but not full phase coverage across a wide bandwidth. This paper proposes a multilayer structure metasurface, which composes of five layers of metal patch
JiaJun Liang   +3 more
doaj   +1 more source

Highly Efficient and Environmentally Stable Radiative Cooling Fabric: Integrating Photoluminescence and Hierarchical Core–Shell Fibers

open access: yesAdvanced Science, EarlyView.
A scalable radiative cooling fabric engineered with a multi‐layer assembly core–shell structure and integrated photoluminescent materials is reported. The fabric exhibits remarkable environmental stability, including UV resistance, mechanical durability, hydrophobicity, stain resistance, thermal stability, and flame retardancy, demonstrating its ...
Hongtao Liu   +8 more
wiley   +1 more source

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