Publicaciones

Affichage de 1261 à 1270 sur 16055

COMM

Contrôle de fiabilité dans les réseaux IoT avec un mélange d'exponentielles comme modèle d'interférence, Reliability control in IoT networks with a mixture of exponentials as interference model

Mamadou Ngom, Laurent Clavier, Malcolm Egan

Dans un contexte de faible latence et de forte densité d'objets connectés, assurer une coordination globale du système n'est pas réaliste. Dans ces conditions, l'interférence peut varier de façon très significative d'un paquet à un autre. Nous proposons une méthode pour choisir..., In a context of low latency and high density of connected objects, ensuring global coordination of the system is unrealistic. Under these conditions, interference can vary significantly from one packet to another. We propose a method for choosing a robust communication scheme in this type of...

XXIXème Colloque Francophone de Traitement du Signal et des Images (GRETSI 2023), Aug 2023, Grenoble, France. ⟨hal-04217246⟩

ART

Single-Cell Electrochemical Aptasensor Array

Shuo Li, Yannick Coffinier, Chann Lagadec, Fabrizio Cleri, Katsuhiko Nishiguchi, Akira Fujiwara, Soo Hyeon Kim, Nicolas Clément

Despite several demonstrations of electrochemical devices with limits of detection (LOD) of 1 cell/mL, the implementation of single-cell bioelectrochemical sensor arrays has remained elusive due to the challenges of scaling up. In this study, we show that the recently introduced nanopillar array...

ACS Sensors, 2023, 8 (8), pp.2921-2926. ⟨10.1021/acssensors.3c00570⟩. ⟨hal-04289140⟩

ART

Porous silicon-nanowire-based electrode for the photoelectrocatalytic production of hydrogen

Jingxian Wang, Caroline Keller, Paul Olli, Pascal Gentile, Stéphanie Pouget, Hanako Okuno, Mohamed Boutghatin, Yan Pennec, Hannah Johnson, Valérie Reita, Adina Morozan, Pascale Chenevier, Duc Nguyen, Vincent Artero

Photoelectrochemical water splitting is a sustainable and environmentally friendly way to produce green hydrogen, for which the practical fabrication of low-cost photoelectrodes remains a challenge. Here we report a porous photocathode assembly based on silicon nanowires (SiNW) as a light absorber...

Sustainable Energy & Fuels, 2023, 7 (19), pp.4864-4876. ⟨10.1039/D3SE00408B⟩. ⟨cea-04193634⟩

ART

The Ground State of Epitaxial Germanene on Ag(111)

Kai Zhang, Marie-Christine Hanf, Romain Bernard, Yves Borensztein, Hervé Cruguel, Andrea Resta, Yves Garreau, Alina Vlad, Alessandro Coati, Davide Sciacca, Bruno Grandidier, Mickael Derivaz, Carmelo Pirri, Philippe Sonnet, Régis Stephan, Geoffroy Prévot

Two-dimensional (2D) honeycomb lattices beyond graphene, such as germanene, appear very promising due to their outstanding electronic properties, such as the quantum spin Hall effects. While there have been many claims of germanene monolayers up to now, no experimental evidence of a honeycomb...

ACS Nano, 2023, 17 (16), pp.15687-15695. ⟨10.1021/acsnano.3c02821⟩. ⟨hal-04195214⟩

COUV

Boosting III-Nitride Solar Cell Efficiency Using a Semibulk Absorber and Piezo-Phototronic Effect

Rabeb Belghouthi, Sahar Ammar, Jean-Paul Salvestrini, Nejiba Aoun, Mounir Ben El Hadj Rhouma

In solar cell applications, III-nitrides have appeared as a suitable candidates principally due to their photovoltaic properties. Nevertheless, the performance of the fabricated devices did not fit the theoretical expectation. This is generally attributed to a poor crystalline quality of the InGaN...

Design and Modeling of Mechanical Systems - V, Springer International Publishing, pp.393-401, 2023, Lecture Notes in Mechanical Engineering, ⟨10.1007/978-3-031-14615-2_44⟩. ⟨hal-03773241⟩

COMM

A simulation tool to interpret error rates in LoRa systems under frequency-sweeping jamming

Artur de São José, Virginie Deniau, Alexandre Boé, Eric Pierre Simon

In a recent experimental study, we submitted a LoRa system to jamming attacks, consisting of frequency-sweeping intentional electromagnetic interference. In the present contribution, we reproduce this scenario in a computational environment aiming to explain the previously observed phenomena based...

XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2023), Aug 2023, Sapporo, Japan. pp.1-4, ⟨10.23919/URSIGASS57860.2023.10265647⟩. ⟨hal-04127556v2⟩

ART

Strong Acousto-Plasmonic Coupling in Film-Coupled Nanoparticles Mediated by Surface Acoustic Waves

Adnan Noual, Rock Akiki, Gaëtan Lévêque, Yan Pennec, Houssaine El Boudouti, Bahram Djafari-Rouhani

The interaction between phonons and localized plasmons in film-coupled nanoparticles designs can be exploited both for modulating the scattered electromagnetic field and the understanding of the mechanical vibrations at nanoscale. In this paper, we show by finite element numerical analysis an...

Materials Science Forum, 2023, 1095, pp.11-20. ⟨10.4028/p-Ra5diQ⟩. ⟨hal-04200066⟩

COMM

Terahertz technology for biophotonics: a general overview and recent advances in THz spectroscopy toward biology

Romain Peretti

In this conference, we will discuss the advancements in Terahertz (THz) spectroscopy and imaging regarding biophotonics applications. In recent years, THz technology helped various fields, from fundamental physics to industrial process control. THz spectrometers offer a wide spectrum range and high...

SPIE Optical Metrology, Jun 2023, Munich, France. pp.50, ⟨10.1117/12.2675742⟩. ⟨hal-04182612⟩

COMM

Automated and Robotic On-Wafer Probing Station

Cerine Mokhtari, Clément Lenoir, Mohamed Sebbache, Kamel Haddadi

Emergent microwave and millimetre-wave technologies call for new and more accurate characterization techniques. In particular, repeatability of on-wafer calibration and measurements methods must be addressed. In this work, we are presenting the hardware and software development of a new...

2023 IEEE Symposium on Wireless Technology & Applications (ISWTA), Aug 2023, Kuala Lumpur, Malaysia. pp.99-102, ⟨10.1109/ISWTA58588.2023.10249964⟩. ⟨hal-04268605⟩

ART

Petroleum Coke Embedded in Cigarette Butts: All Waste-Derived Solar Evaporator for Effective Water Evaporation

Go Inoue, Alexandre Barras, Yunfei Ma, Ning Cao, Alexandre Fadel, Pascal Roussel, Mu Naushad, Sabine Szunerits, Rabah Boukherroub

Solar-driven interfacial evaporation is an eco-friendly solution for tackling the impending water scarcity the world is facing in our century. In this work, a solar-driven interfacial evaporator was prepared from cigarette butts loaded with petroleum coke powder (Filter-PetCoke), a by-product of...

ACS Applied Materials & Interfaces, 2023, 15 (31), pp.37327-37336. ⟨10.1021/acsami.3c04894⟩. ⟨hal-04182755⟩