Results 71 to 80 of about 10,181 (286)

Ultrasensitive miniaturized planar microwave sensor for characterization of water–alcohol mixtures

Scientific Reports, 2023
Designing a low-cost, compact, yet sensitive planar microwave sensor for complex permittivity measurement is highly desired for numerous applications though quite challenging.
Saeed Javadizadeh, Majid Badieirostami, Mahmoud Shahabadi   +2 more
doaj   +1 more source

Bandgap‐Engineered AlGaAs/GaAs Heterostructures for Wavelength‐Selective Dual‐Polarity Photoelectrochemistry

Advanced Functional Materials, EarlyView.
Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao, Lipin Chen, Jules Courtin, Siyu Lin, Gangri Cai, Yan Zhu, Yoan Léger, Nicolas Bertru, Jinshi Zhao, Charles Cornet   +9 more
wiley   +1 more source

A Novel Dual Modality Sensor With Sensitivities to Permittivity, Conductivity, and Permeability [PDF]

, 2018
In this paper, an electromagnetic sensor which can operate simultaneously in capacitive and inductive modalities with sensitivities to permittivity, conductivity, and permeability is developed, and a novel measurement strategy is proposed accordingly ...
Lu, Mingyang, Yin, Wuliang, How, Kin Yau, Jorge R. Salas Avila, Kin Yau How, Avila, Jorge R. Salas, Mingyang Lu, Wuliang Yin   +7 more
core   +1 more source

Interface Effects in Ultrathin Silicon on Insulator Films

Advanced Functional Materials, EarlyView.
This work establishes a systematic framework to discriminate how bulk and interface phenomena affect charge transport in ultrathin P‐doped silicon‐on‐insulator (SOI) films. For Si films below 15 nm, electrical characterization demonstrates that interface states drive charge transport, shifting the metal‐insulator transition (MIT) critical dopant ...
Andrea Pulici, Gabriele Seguini, Fabiana Taglietti, Roman Gumeniuk, Riccardo Chiarcos, Michele Laus, Johannes Heitmann, Marco Fanciulli, Michele Perego   +8 more
wiley   +1 more source

Designing and analysis of flexible four legged-loaded metamaterial absorber sensor for permittivity detection of a solid substrate

Engineering Science and Technology, an International Journal
This article proposes a metamaterial absorber (MMA) based sensor with solid permittivity analysis. MMA application has received significant interest across multiple domains, including sensors, wireless communication, detectors, emitters, antenna design ...
Shihabun Sakib, Mohammad Tariqul Islam, Ahasanul Hoque, Abdulmajeed M. Alenezi, Mohamed S. Soliman, Haitham Alsaif   +5 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

A 5×5 Microwave Permittivity Sensor Matrix in O.14-m CMOS

, 2018
A 0.14-μ m CMOS 2-D permittivity imaging matrix prototype operating at microwave frequencies is presented. It comprises 25 permittivity-sensing pixels, each consisting of a sensing patch connected to a dedicated RF bridge.
Marco Spirito, Spirito, M., Michiel A.P. Pertijs, Gerasimos Vlachogiannakis, Pertijs, M.A.P. (author), Kanamaluru, S., Zhebin Hu, Spirito, M. (author), Leo de Vreede, Hu, Z., Hu, Z. (author), de Vreede, L.C.N. (author), Vlachogiannakis, G. (author), Vlachogiannakis, G., Pertijs, M.A.P., de Vreede, L.C.N.   +15 more
core   +1 more source

Permittivity Characterization of Conductive and Corrosive LiBr Water Solutions, Method Validation up to 9 GHz Using a Low-Cost SMA Probe

Sensors
In this article, we present a method for extracting the complex permittivity of high-conductivity solutions up to 9 GHz. Microwave measurements were performed using a low-cost SMA connector, employed as an open-circuit coaxial probe, which was ...
Anne-Laure Perrier, Gregory Houzet, Jonathan Outin, Edouard Rochefeuille, Benoit Stutz, Thierry Lacrevaz   +5 more
doaj   +1 more source

Dual Notch Microwave Sensors Based on Complementary Metamaterial Resonators

IEEE Access, 2019
In this paper, three dual notch microwave sensors are presented based on a microstrip transmission line and complementary metamaterial resonators. The main aim of this paper is to compare the constitutive parameters and sensitivity of all three dual ...
Tanveerul Haq, Cunjun Ruan, Shahid Ullah, Ayesha Kosar Fahad   +3 more
doaj   +1 more source