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Communication dans un congrès

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⟩

Article dans une revue

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⟩

Article dans une revue

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⟩

Article dans une revue

Low Complexity Joint Blind Equalization and CFO Estimation for MC-CDMA System

Kais Bouallegue, Iyad Dayoub, M Gharbi, Kaïs Hassan, R. Masmoudi, A. Djebbar

Based on the orthogonality between the used and the unused spreading codes (excess codes) subspaces in one hand and on the restoration of guard interval redundancy of Multicarrier Code Division Multiple Access signal in other hand, we propose joint Carrier Frequency Offset and time domain equalizer…

Wireless Personal Communications, 2017, 92 (2), pp.315-331. ⟨10.1007/s11277-016-3545-9⟩. ⟨hal-03382946⟩

Article dans une revue

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⟩

Communication dans un congrès

An ultra broadband 0.5-18 GHz BPSK modulator

Paul Sangare, Christophe Loyez, Kevin Carpentier, Markus Mayer, Dirk Hartung, Francois Parickmiler, Nathalie Rolland

This paper presents an innovative topology of an ultra-broadband BPSK modulator. This novel architecture consists of a specific distributed amplifier and absorptive switches, providing amplitude flatness and low phase imbalance over the 0.5 - 18 GHz frequency bandwidth. Experimental results…

12th European Microwave Integrated Circuits Conference (EuMIC), Oct 2017, Nuremberg, Germany. paper EuMIC08-3, 171-174, ⟨10.23919/EuMIC.2017.8230687⟩. ⟨hal-03270104⟩

Article dans une revue

Advancements on the molecular design of nanoantibiotics: current level of development and future challenges

Roxana Jijie, Alexandre Barras, Florina Teodorescu, Rabah Boukherroub, Sabine Szunerits

Numerous antimicrobial drugs have been developed and commercialized to kill and inhibit the growth of pathogenic microbes. The therapeutic efficiency of these drugs has however become often inadequate for the treatment of microbial infections, the reasons being multiple. Oral administration results…

Molecular Systems Design & Engineering, 2017, 2 (4), pp.349-369. ⟨10.1039/C7ME00048K⟩. ⟨hal-01686819⟩

Communication dans un congrès

Comparative Study of Transient Disturbances Impact on 2G and 4G Telecommunication Systems in a Railway Context

Mohammed Raouf Kousri, Virginie Deniau, Jean Rioult, Grecia Romero, Eric Pierre Simon

Pour des raisons de fiabilité et de sécurité, les systèmes de signalisation dans le domaine ferroviaire évoluent en permanence. Aujourd'hui, en Europe, le GSM-R est utilisé dans le cadre du système européen de gestion du trafic ferroviaire (ERTMS) et la transmission des informations de…

URSI GASS 2017 - 32nd International Union of Radio Science General Assembly & Scientific Symposium, Aug 2017, Montreal, Canada. 4p. ⟨hal-01662738⟩

Article dans une revue

A comprehensive study of magnetic exchanges in the layered oxychalcogenides Sr3Fe2O5Cu2Q2 (Q = S, Se)

Minfeng Lü, Olivier Mentre, Elijah E. Gordon, Myung-Hwan Whangbo, Alain Wattiaux, Mathieu Duttine, Nicolas Tiercelin, Houria Kabbour

The layered oxysulfide Sr3Fe2O5Cu2S2 was prepared, and its crystal structure and magnetic properties were characterized by synchrotron X-ray diffraction (XRD), powder neutron diffraction (PND), Mössbauer spectroscopy measurements and by density functional theory (DFT) calculations. In addition, the…

Journal of Magnetism and Magnetic Materials, 2017, 444, pp.147-153. ⟨10.1016/j.jmmm.2017.07.026⟩. ⟨hal-01611341⟩

Article dans une revue

Topological protection of electronic states against disorder probed by their magnetic moment

Athmane Tadjine, Christophe Delerue

Magnetic moments (MMs) of electrons in topological insulator quantum dots (TI-QDs) are investigated using a model system, namely a multiorbital honeycomb lattice. Their nature and orientation with respect to the spin are studied. We show that large MMs are not specific to edge states in nontrivial…

Physical Review B, 2017, 95 (23), pp.235426. ⟨10.1103/PhysRevB.95.235426⟩. ⟨hal-02906814⟩