Publications

• COMM

Microfabricated PEDOT trilayer actuators: synthesis, characterization, and modeling

Ngoc Tan Nguyen, Cedric Plesse, Caroline Soyer, Sébastien Grondel, John D.W. Madden, Eric Cattan, Frédéric Vidal

Conducting polymer actuators have long been of interest as an alternative to piezoelectric and electrostatic actuators due to their large strains and low operating voltages. Recently, poly (3,4-ethylenedioxythiophene) (PEDOT) - based ionic actuators have been shown to overcome many of the initial…

SPIE Conference on Electroactive Polymer Actuators and Devices (EAPAD), Mar 2017, Portland, OR, United States. ⟨10.1117/12.2260431⟩. ⟨hal-03280257⟩

• COMM

High efficiency UTC photodiodes as photonic emitters for 300 GHz high spectral efficiency wireless communications

Philipp Latzel, Fabio Pavanello, Sara Bretin, Maximilien Billet, Emilien Peytavit, Jean-Francois Lampin, Mohammed Zaknoune, Guillaume Ducournau

This paper presents the development and use of high-efficiency Unitravelling carrier photodiodes for THz communications. Using these devices, high output power is obtained close to the mW level. THz wireless links demonstration is also presented using these devices, using high-level modulation…

11th European Conference on Antennas and Propagation (EUCAP), Mar 2017, Paris, France. ⟨10.23919/EuCAP.2017.7928278⟩. ⟨hal-03286168⟩

• COMM

Graphene field effect transistors with optimized contact resistance for current gain

W. Wei, D. D. Fazio, U. Sassi, A. C. Ferrari, E. Pallecchi, H. Happy

75th Annual Device Research Conference, DRC 2017, Jun 2017, South Bend, IN, USA, United States. pp.1-2, ⟨10.1109/DRC.2017.7999420⟩. ⟨hal-03335834⟩

• COMM

Study of the positioning of wireless sensors for communication at 2.4 GHz inside the train

Ulrich Biaou, Sara Iben Jellal, Michael Bocquet, S. Baranowski, Atika Rivenq, Philippe Mariage

The benefits of wireless sensor networks (WSN) offer many possibilities for the management of energy systems, which are actually based on wired systems. The need of new services on-board the train and of cables lengths reduction promote the use of wireless sensor networks in trains. Then,…

International Conference on Wireless Technologies, Embedded and Intelligent Systems (WITS), Apr 2017, Fez, Morocco. paper NET-4, 5 p., ⟨10.1109/WITS.2017.7934612⟩. ⟨hal-03270092⟩

• ART

High temperature gradient nanogap-Pirani micro-sensor with maximum sensitivity around atmospheric pressure

Cécile Ghouila-Houri, Abdelkrim Talbi, R. Viard, M. Moutaouekkil, O. Elmazria, Q. Gallas, E. Garnier, A. Merlen, Philippe Pernod

This letter describes and discusses the design and testing of an effcient nanogap Pirani micro-sensor for pressure measurements in a wide range with a maximum sensitivity around atmospheric pressure. The structure combines a substrate-free heated wire and mechanical support using silicon oxide…

Applied Physics Letters, 2017, 111, pp.113502. ⟨10.1063/1.4995364⟩. ⟨hal-01635348⟩

• ART

Reduced graphene oxide decorated with Co3O4 nanoparticles (rGO-Co3O4) nanocomposite: A reusable catalyst for highly efficient reduction of 4-nitrophenol, and Cr(VI) and dye removal from aqueous solutions

Amer Al-Nafiey, Ahmed Addad, Brigitte Sieber, Guillaume Chastanet, Alexandre Barras, Sabine Szunerits, Rabah Boukherroub

Water contamination with synthetic dyes and metal ions is an escalating problem, despite the huge research efforts put in the field of water treatment. The paper reports on one-step synthesis of reduced graphene oxide-cobalt oxide nanoparticles (rGO-Co3O4) nanocomposite under mild conditions. The…

Chemical Engineering Journal, 2017, 322, pp.375-384. ⟨10.1016/j.cej.2017.04.039⟩. ⟨hal-01520632⟩

• ART

Generation of mW level in the 300-GHz band using resonant-cavity-enhanced unitraveling carrier photodiodes

Philipp Latzel, Fabio Pavanello, Maximilien Billet, Sara Bretin, Alexandre Beck, Mathias Vanwolleghem, Christophe Coinon, Xavier Wallart, Emilien Peytavit, Guillaume Ducournau, Mohammed Zaknoune, Jean-Francois Lampin

We present a resonant-cavity-enhanced broadband unitraveling carrier photodiode optimized for terahertz (THz) generation. It uses a novel semitransparent top-contact utilizing subwavelength apertures for enhanced optical transmission. The contact allows front-side illumination of the photodiode…

IEEE Transactions on Terahertz Science and Technology, 2017, 7 (6), pp.800-807. ⟨10.1109/TTHZ.2017.2756059⟩. ⟨hal-03286186⟩

• ART

Negative Differential Resistance, Memory and Reconfigurable Logic Functions Based on Monolayer Devices Derived From Gold Nanoparticles Functionalized With Electropolymerizable Thiophene-EDOT Units

Tiantian Zhang, David Guérin, F. Alibart, Dominique Vuillaume, Kamal Lmimouni, Stéphane Lenfant, Ali Yassin, Maiténa Oçafrain, Philippe Blanchard, Jean Roncali

We report on hybrid memristive devices made of a network of gold nanoparticles (10 nm diameter) functionalized by tailored 3,4-(ethylenedioxy)thiophene (TEDOT) molecules, deposited between two planar electrodes with nanometer and micrometer gaps (100 nm to 10 μm apart), and electropolymerized in…

Journal of Physical Chemistry C, 2017, 121 (18), pp.10131-10139. ⟨10.1021/acs.jpcc.7b00056⟩. ⟨hal-02564472⟩

• ART

Thermal conductivity of glassy GeTe4 by first-principles molecular dynamics

Assil Bouzid, Hayat Zaoui, Pier Luca Palla, Guido Ori, Mauro Boero, Carlo Massobrio, Fabrizio Cleri, Évelyne Martin

A transient thermal regime is achieved in glassy GeTe4 by first-principles molecular dynamics following the recently proposed “approach-to-equilibrium” methodology. The temporal and spatial evolution of the temperature do comply with the time-dependent solution of the heat equation. We demonstrate…

Physical Chemistry Chemical Physics, 2017, 19 (15), pp.9729-9732. ⟨10.1039/c7cp01063j⟩. ⟨hal-02349381⟩

• ART

Low Source/Drain Contact Resistance for AlGaN/GaN HEMTs with High Al Concentration and Si-HP [111] Substrate

Steven Duffy, Brahim Benbakhti, Maghnia Mattalah, Wei Zhang, Meriem Bouchilaoun, Mohammed Boucherta, Karol Kalna, Nour Eddine Bourzgui, Maher, Hassan, Ali Soltani

An optimized fabrication process of ohmic contacts is proposed to reduce the source/drain access resistance (RC) and enhance DC/RF performance of AlGaN/GaN HEMTs with a high Al concentration. We show that source/drain RC can be considerably lowered by (i) optimally etching into the barrier layer…

ECS Journal of Solid State Science and Technology, 2017, 6 (11), pp.S3040 - S3043. ⟨10.1149/2.0111711jss⟩. ⟨hal-01914382⟩