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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

Finite element modeling of a piezoelectric slender bar transducer equipped with a multilayer backing for medical imaging applications

Nadia El Atlas, Abdelmajid Bybi, Hilal Drissi, Anne-Christine Hladky

The goal of this work is to investigate the impact of front and back matching layers properties on a piezoelectric slender bar transducer performances and to propose a novel multilayer backing absorber. Quarter-wavelength acoustic matching layers and backing are known as essential components to…

3rd International Conference on Electrical and Information Technologies (ICEIT), Nov 2017, Rabat, Morocco. ⟨10.1109/EITech.2017.8255284⟩. ⟨hal-03300126⟩

Article dans une revue

On demand electrochemical release of drugs from porous reduced graphene oxide modified flexible electrodes

Samia Boulahneche, Roxana Jijie, Alexandre Barras, Fereshteh Chekin, Santosh K Singh, Julie Bouckaert, Mohamed Salah Medjram, Sreekumar Kurungot, Rabah Boukherroub, Sabine Szunerits

Despite the advantages of an electrochemical control for drug release, only a handful of electrochemical-based release systems have been developed so far. We report herein on the development of an electrochemically activatable platform for on-demand delivery of drugs. It is based on flexible gold…

Journal of materials chemistry‎ B, 2017, 5 (32), pp.6557-6565. ⟨10.1039/C7TB00687J⟩. ⟨hal-01679631⟩

Article dans une revue

Selective Manipulation of Microscopic Particles with Precursor Swirling Rayleigh Waves

Antoine Riaud, Michael Baudoin, Olivier Bou Matar, Loic Becerra, Jean-Louis Thomas

Contactless manipulation of microparticles is demonstrated with single-beam acoustical tweezers based on precursor swirling Rayleigh waves. These surface waves degenerate into acoustical vortices when crossing a stack made of a fluid layer and its solid support, hence creating a localized…

Physical Review Applied, 2017, 7, pp.024007. ⟨10.1103/PhysRevApplied.7.024007⟩. ⟨hal-01519025⟩

Article dans une revue

Modeling and optimization of core/shell p-i-n Si/Si0.2Ge0.8 nanowire for photovoltaic

Fethi Benyettou, Abdelkader Aissat, Isabelle Berbezier, Jean-Pierre Vilcot

In this work we propose a modeling and simulation of core/shell p-i-n Si/Si0.2Ge0.8 nanowire for photovoltaic. In the first step of this work, we have compared the core/shell p-i-n homo-junction Si and heterojunction Si/Si0.2Ge0.8 Nanowire (NW) solar cell having a length of 3 mu m and a radius of 0…

Optik, 2017, 149, pp.246-251. ⟨10.1016/j.ijleo.2017.09.056⟩. ⟨hal-01694450⟩

Article dans une revue

Three-dimensional (3D) culture of adult murine colon as an in vitro model of cryptosporidiosis: Proof of concept

Martha Baydoun, Sadia Benamrouz Vanneste, Colette Creusy, Karine Guyot, Nausicaa Gantois, Magali Chabe, Baptiste Delaire, Anthony Mouray, Atallah Baydoun, Gerard Forzy, Vincent Chieux, Pierre Gosset, Vincent Senez, Eric Viscogliosi, Jérôme Follet, Gabriela Certad

Cryptosporidium parvum is a major cause of diarrheal illness and was recently potentially associated with digestive carcinogenesis. Despite its impact on human health, Cryptosporidium pathogenesis remains poorly known, mainly due to the lack of a long-term culture method for this parasite. Thus,…

Scientific Reports, 2017, 7 (1), pp.17288. ⟨10.1038/s41598-017-17304-2⟩. ⟨hal-03669831⟩