Publications

• Article dans une revue

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…

• Communication dans un congrès

Device for broadband THz spectroscopy of 1-nL-volume samples

Sergey Mitryukovskiy, Melanie Lavancier, Flavie Braud, Theo Hannotte, Emmanuel Dubois, Jean-Francois Lampin, Romain Peretti

We report on our recent progress in the development of a device for light-matter interaction enhancement in the full terahertz range for precise spectroscopy of minor-volume samples. The efficient confinement of a broadband terahertz pulse to a few-nL-volume was achieved, opening new perspectives…

2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Sep 2019, Paris, France. paper Tu-PM2-3-6, 2 p., ⟨10.1109/IRMMW-THz.2019.8874026⟩. ⟨hal-02886495⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Communication dans un congrès

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⟩

• Article dans une revue

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⟩

• Communication dans un congrès

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⟩

• Communication dans un congrès

Méthodes de prétraitement pour les systèmes de codage vidéo linéaire basé SoftCast

Anthony Trioux, François-Xavier Coudoux, Patrick Corlay, M Gharbi

Un nouveau schéma de codage vidéo linéaire dénommé SoftCast a démontré ces dernières années un potentiel élevé pour la diffusion de vidéo sur des canaux sans-fil variant dans le temps. Particulièrement utile en situation de broadcast, il permet d’éviter les problèmes rencontrés dans les systèmes de…, An original wireless video transmission scheme called SoftCast has been recently proposed to deal with the issues encounteredin conventional wireless video broadcasting systems such as cliff effect [1]. In [2], we analyzed and compared two simple pixel-preprocessing methods that help to increase…

XXVIIème Colloque Francophone de Traitement du Signal et des Images, GRETSI 2019, Aug 2019, Lille, France. ⟨hal-02423792⟩

• Communication dans un congrès

Estimation de canal basée sur le filtre de Kalman pour communications Mobile-Mobile incluant des relais mobiles

Ali Houssam El Husseini, Laurent Ros, Eric Pierre Simon

GRETSI 2019 - XXVIIème Colloque Francophone de Traitement du Signal et des Images, Aug 2019, Lille, France. ⟨hal-02304549⟩

• Communication dans un congrès

Broadening coefficients of rotational transitions of hydrogen sulfide measured by THz spectroscopy and theoretical calculations.

Meriem Mouelhi, Arnaud Cuisset, Robin Bocquet, Francis Hindle, Gaël Mouret, C. Jellali, Hassen Araoui, Sophie Eliet, Romain Peretti, François Rohart

26th Colloquium on High Resolution Molecular Spectroscopy (HRMS 2019), Aug 2019, Dijon, France. ⟨hal-04440003⟩