Publications

• COMM

THz links using tube amplifiers and steerable beams for indoor applications

Cybelle Belem-Goncalves, Guillaume Ducournau, Andre Sarker, Henry Giddens, C. Biurrun, C. Del-Rio Boccio, Cyril Luxey, Yang Hao, Rupa Basu, Claudio Paoloni

We present in this paper an ongoing project will is targeting the combination of several technologies to achieve high-data-rate and long-range links using a mW level source with fast modulation, waveguide coupled to drive a traveling-wave tube amplifier towards a modulated in the 210-250 GHz range…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. pp.1-2, ⟨10.1109/IRMMW-THz.2019.8874114⟩. ⟨hal-03555377⟩

• ART

Improvement in carrier dynamics in In_xGa_1-xN/GaN multi-quantum well for solar cell applications

Abdelkader Aissat, Jean-Pierre Vilcot

In this work, we have studied and simulated nanostructures to improve the solar cell efficiency. The idea of this study is to insert multi-quantum wells in the structure of a solar cell (MQWSC). The electric field, recombination, and the photogeneration rates of charge carriers in QWSC influence…

• ART

Magnetic Interactions on Oxide Ferromagnet/Ferromagnetic Intermetallide Interface

G. Ovsyannikov, V. Demidov, T. Shaikhulov, A. Klimov, Nicolas Tiercelin, Philippe Pernod, S. Nikitov

The magnetic properties of heterostructures consisting of two films are studied. The upper layer involves rare-earth intermetallic nanostructured superlattices consisting of exchange-coupled layers (TbCo 2 /FeCo) n (TCFC), and the lower layer includes either epitaxial manganite La 0.7 Sr 0.3 MnO 3…

Physics of the Solid State, 2019, 61 (9), pp.1652-1657. ⟨10.1134/S1063783419090191⟩. ⟨hal-02318292⟩

• ART

Metallized SU-8 thin film patterns on stretchable PDMS

Tiffany Baëtens, Emiliano Pallecchi, V. Thomy, S. Arscott

Journal of Micromechanics and Microengineering, 2019, 29 (9), pp.095009. ⟨10.1088/1361-6439/ab307f⟩. ⟨hal-02345306⟩

• ART

Chalcogenide glasses as a playground for the application of first-principles molecular dynamics to disordered materials

Guido Ori, Assil Bouzid, Évelyne Martin, Carlo Massobrio, Sébastien Le Roux, Mauro Boero

An overview of the major first-principles methods used to simulate condensed phases is presented, with special emphasis on chalcogenide glasses. The scope of this review article is to offer a survey of fundamental algorithms and techniques, accompanied by a few recent examples particularly…

Solid State Sciences, 2019, 95, pp.105925. ⟨10.1016/j.solidstatesciences.2019.06.014⟩. ⟨hal-02349474⟩

• ART

The Non-Ideal Organic Electrochemical Transistors Impedance

Sébastien Pecqueur, Ivor Lončaric, Vinko Zlatić, Dominique Vuillaume, Željko Crljen

Organic electrochemical transistors offer powerful functionalities for biosensors and neuroinspired electronics, with still much to understand on the time dependent behavior of this electrochemical device. Here, we report on distributed element modeling of the impedance of such microfabricated…

Organic Electronics, 2019, 71, pp.14-23. ⟨10.1016/j.orgel.2019.05.001⟩. ⟨hal-02133788⟩

• COMM

A Multiscale Numerical Model for Structures with Internal Frictional Contacts

Kevin Truyaert, Vladislav Aleshin, Steven Delrue, Koen van den Abeele

Abstract Many engineering applications are related to or deal with materials and systems having internal frictional contacts in their structure. The effects induced by these contacts, such as friction-induced heat generation, wear, nonlinear vibrations, etc., can be significant and cannot be…

1st International Conference on Numerical Modelling in Engineering, 2018, Ghent, Belgium. pp.77-89, ⟨10.1007/978-981-13-2273-0_7⟩. ⟨hal-02364170⟩

• ART

Hyperfine Interactions and Slow Spin Dynamics in Quasi-isotropic InP-based Core/Shell Colloidal Nanocrystals

Annalisa Brodu, Mickaël Tessier, Damien Canneson, Dorian Dupont, Mariana V Ballottin, Peter C M Christianen, Celso de Mello Donega, Zeger Hens, Dmitri R Yakovlev, Manfred Bayer, Daniel Vanmaekelbergh, Louis Biadala

Colloidal InP core/sell nanocrystals are taking over CdSe-based nanocrystals, notably in optoelectronic applications. Despite their use in commercial device such as display screens, the optical properties of InP nanocrystals and especially their relation with the exciton fine structure remains…

ACS Nano, 2019, 13 (9), pp.10201-10209. ⟨10.1021/acsnano.9b03384⟩. ⟨hal-02394897⟩

• COMM

Canal à deux relais utilisant Compress-and-Forward

Anne Savard, Laurent Clavier

Ce papier propose une étude d'un canal bi-directionnel où deux relais aident deux utilisateurs à échanger leurs données. Nous nous concentrons sur le cas où l'un des deux relais utilise le schéma Compress-and-Forward (CF) alors que l'autre relais peut utiliser soit CF soit Decode-and…

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. ⟨hal-02275880⟩

• COMM

Performance théorique d'un neurone à spikes Integrate-and-Fire

Anne Savard, Laurent Clavier, Francois Danneville, Christophe Loyez

Ce papier se concentre sur les performances théoriques d'un détecteur neuro-inspiré pour une communication numérique où le signal d'entrée est inférieur au seuil d'activation du neurone, rendant le bruit crucial pour la détection. Nous caractérisons dans un premier temps la…, This paper focuses on the theoretical performance of a neuro-inspired digital communication, where the input signal is below the activation threshold of the neuron, making the noise crucial for the detection. We first derive the error probability of a neuro-inspired detector build upon a single…

GRETSI 2019 - XXVIIème Colloque francophone de traitement du signal et des images, Aug 2019, Lille, France. ⟨hal-02275927⟩