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Affichage de 31 à 40 sur 16307

Article dans une revue

Substrate-dominated RF losses in 200 mm GaN-on-Si coplanar waveguides up to 150 °C

Elodie Carneiro, François Grandpierron, Lyes Ben Hammou, Gia Ngoc Phung, Kamel Haddadi, Sondre Michler, Po Chun Hsu, Sarad B Thapa, Farid Medjdoub

We present an experimental and simulation study of radio frequency (RF) losses in gallium nitride (GaN)-on-Si coplanar waveguides (CPWs) fabricated on 200 mm GaN-on-Si(111) with high-resistivity silicon substrates. The effects of Au metallization thickness (0.5-1.5 μm), substrate resistivity, and…

AIP Advances, 2026, 16 (6), pp.065027. ⟨10.1063/5.0317639⟩. ⟨hal-05674320⟩

Article dans une revue

Tailoring oxygen vacancies via Bi substitution in LaFeO3 nanoparticles: efficient, cost-effective, and durable anode electrocatalyst for methanol oxidation reaction

Fawzi Hadji, Ouarda Ben Ali, Mourad Mebarki, Rabah Boukherroub, Kilaparthi Sravan Kumar, Mahmoud Omari, Mohammed Sadok Mahboub

The pursuit of durable and cost-effective non-noble metal-based electrocatalysts for direct methanol fuel cells remains a major challenge. To this end, a series of La1-xBixFeO3 nanoparticles with x = 0, 0.1, 0.2, and 0.3 were synthesized using modified Pechini pathway and assessed as potential…

International Journal of Hydrogen Energy, 2026, 243, pp.155641. ⟨10.1016/j.ijhydene.2026.155641⟩. ⟨hal-05645561⟩

Article dans une revue

Modeling and simulation of the InGaAs/Si quantum dot structure for solar cells applications

A. Ouaridhine, A. Aissat, M. Wadi, M.A. Benamar, S. Dupont

In this article, the impact of incorporating quantum dots based on InxGa1-xAs into the intrinsic layer of a polycrystalline silicon solar cell has been modeled and simulated. This work was carried out under the following conditions: T = 300K and AM1.5G using the SILVACO software. The strain (є)…

Journal of the Indian Chemical Society, 2026, 103 (6), pp.102657. ⟨10.1016/j.jics.2026.102657⟩. ⟨hal-05624814⟩

Article dans une revue

Dirac cones and topological torsional modes in phononic nanowires using Su–Schrieffer–Heeger Model

Mohammed Elaouni, Noura Ezzahni, Soufyane Khattou, Madiha Amrani, Afaf Bouzidi, Abdellatif Gueddida, El Houssaine El Boudouti, Bahram Djafari-Rouhani

Topological materials have attracted significant attention due to their distinct edge states, known for their robustness to local perturbations. In the field of phononic crystals, these states manifest as topological surface or interface modes, offering promising applications in waveguiding and…

Ultrasonics, 2026, 162, pp.107975. ⟨10.1016/j.ultras.2026.107975⟩. ⟨hal-05675152⟩

Proceedings/Recueil des communications

Magnon-phonon coupling in magnetic materials

Mohamed Boutghatin, Noura Ezzahni, Abdelkrim Talbi, Othmane Marbouh, Yannick Dusch, Nicolas Tiercelin, El Houssaine El Boudouti, Olivier Bou Matar

The control of magnetism via acoustic waves has led to significant research activity, with the aim of paving the way for novel electronic and spintronic applications that are ultrafast, compact, and energy-efficient. This growing interest has stimulated the development of both experimental…

Spintronics and Nanomagnetism, Apr 2026, Strasbourg, France. SPIE, pp.10, 2026, ⟨10.1117/12.3106324⟩. ⟨hal-05639291⟩

Article dans une revue

N2200 based organic rectifying diodes for ambient electromagnetic energy harvesting

Khaoula Ferchichi, Kamal Lmimouni

Rectifying diodes are key components for electromagnetic energy-harvesting systems. Recently, organic diode have attract a lot of attention for this applications due to its low-cost, flexibily and easy disposability In this work, we report the fabrication and electrical characterization of n-type…

Synthetic Metals, 2026, 319, pp.118177. ⟨10.1016/j.synthmet.2026.118177⟩. ⟨hal-05646659⟩

Communication dans un congrès

Epitaxial design trade-offs and lateral mode profiles in hybrid III–V/Si quantum dot DBR lasers without III–V tapering

Konstantinos Papatryfonos, Peter Raymond Smith, David Selviah

<div><p>The realization of compact and energy-efficient integrated lasers operating at 1.3 µm is a key objective in silicon photonics, underpinning progress in data communications and optical interconnect technologies. Here, we revisit hybrid III-V/Si quantum-dot (QD) distributed Bragg…

Integrated Photonics Platforms IV, Apr 2026, Strasbourg, France. pp.65, ⟨10.1117/12.3099175⟩. ⟨hal-05640460⟩

Article dans une revue

Quantum Annealing approaches for Minimal Cut Set identification in fault trees

Rola Saidi, Samuel Deleplanque, Stefan Creemers, Luis Fernando Pérez Armas, Mohamed Hibti, Belhassen Zouari

The identification of Minimal Cut Sets (MCS) in Fault Trees (FT) is central to Probabilistic Safety Assessment (PSA) but remains computationally challenging. While gate-based quantum algorithms have been explored, Quantum Annealing (QA) has not yet been applied to this industrial use case. This…

Reliability Engineering and System Safety, 2026, pp.112907. ⟨10.1016/j.ress.2026.112907⟩. ⟨hal-05637787⟩

Communication dans un congrès

Characterization of Healthy and Faulty Networks using Structured Transferometry Residuals

Ameer Ahmadie, Virginie Degardin, Vincent Cocquempot

This paper presents the characterization of healthy and faulty situations in Y-shaped communication networks using a transferometry-based diagnostic method. The study focuses on soft faults, defined as small degradations that do not significantly impact data or power transmission in networks.…

2026 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), May 2026, Nancy (FR), France. ⟨hal-05543288⟩

Article dans une revue

Nonlinear Strain‐Mediated Magnetoelectric Coupling in Sub‐Microscale Ni/BPZT Thin‐Film Devices

Fanfan Meng, Emma van Meirvenne, Federica Luciano, Xiangyu Wu, Yves Deblock, Kaustuv Banerjee, Peter Rickhaus, Florin Ciubotaru, Christoph Adelmann

<div><p>Strain-mediated magnetoelectric (ME) heterostructures enable electric-field control of magnetism and are promising for ultralow-power spintronic logic. Yet achieving spatially selective, low-voltage control in thin films and quantifying ME coupling across the full ferroelectric…

Advanced Electronic Materials, 2026, 0:e00839, 9 p. ⟨10.1002/aelm.202500839⟩. ⟨hal-05635774⟩