Publications

• Article dans une revue

Complexity of the hot carrier relaxation in Si nanowires compared to bulk

Jing Li, Yann-Michel Niquet, Christophe Delerue

We investigate the relaxation of hot carriers by emission of phonons in bulk Si and Si nanowires (NWs) with an identical atomistic methodology. The phonon scattering is strongly enhanced in NWs. At high excitation energy, the carrier cooling is faster in NWs than in bulk, mainly due to the coupling…

Physical Review B, 2017, 95 (20), pp.205401. ⟨10.1103/PhysRevB.95.205401⟩. ⟨hal-02015399⟩

• Article dans une revue

Iron minerals within specific microfossil morphospecies of the 1.88 Ga Gunflint Formation

Kevin Lepot, Ahmed Addad, Andrew H. Knoll, Jian Wang, David Troadec, Armand Béché, Emmanuelle J. Javaux

Problematic microfossils dominate the palaeontological record between the Great Oxidation Event 2.4 billion years ago (Ga) and the last Palaeoproterozoic iron formations, deposited 500-600 million years later. These fossils are often associated with iron-rich sedimentary rocks, but their affinities…

Nature Communications, 2017, 8, ⟨10.1038/ncomms14890⟩. ⟨insu-03688102⟩

• Proceedings/Recueil des communications

Non destructive evaluation of bi-material structures: a case study

Lynda Chehami, Nico F. Declercq, Paul Lohmuller, Pascal Pomarede, Boris Pitrowski, Fodil Meraghni, Esam Ahmed Mohamed, Othmane Ez-Zahraouy

Due to their specific elastic properties (high stiffness to mass ratio), regular microstructure materials (architectural materials), are widely used in industry. This work deals with nondestructive evaluation of a 3D bi-material structure made of an architectural ABS polymer embedded in an Epoxy…

pp.045002, 2017, ⟨10.1121/2.0000608⟩. ⟨hal-02354065⟩

• 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⟩

• Article dans une revue

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⟩

• 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

Correction to: Effect of incubation duration, growth temperature, and abiotic surface type on cell surface properties, adhesion and pathogenicity of biofilm-detached Staphylococcus aureus cells

Oussama Khelissa, Charafeddine Jama, Marwan Abdallah, Rabah Boukherroub, Christine Faille, Nour-Eddine Chihib

Following publication of the original article (Khelissa et al. 2017), the authors reported that the legend for Fig. 3 contained an error. Instead of “Adhesion of planktonic and biofilm-detached Staphylococcus aureus cells on stainless steel and polycarbonate. Cell cultures were grown at 20, 30 and…

AMB Express, 2017, 7 (191), ⟨10.1186/s13568-017-0509-8⟩. ⟨hal-02623145⟩

• Communication dans un congrès

Design, fabrication and characterization of a new wideband antenna based on a Polyaniline/Carbon coated Cobalt composite

Z. Hamouda, J.-L. Wojkiewicz, A.A. Pud, Lamine Kone, S. Bergheul, T. Lasri

The new generation of polymer materials has the facility to conduct electricity, radiate and concurrently be flexible. Accordingly, the possibility of implementation of a flexible antenna opens the door to many interesting applications including body-worn ones. This paper presents the design of a…

11th European Conference on Antennas and Propagation, EUCAP 2017, Mar 2017, Paris, France. pp.2130-2133, ⟨10.23919/EuCAP.2017.7928153⟩. ⟨hal-03538362⟩

• 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⟩

• Communication dans un congrès

Influence d’irradiations neutroniques sur les pièges électriques induits par des stress électriques dans des HEMTs AlInN/GaN

Sébastien Petitdidier, Yannick Guhel, Jean Lionel Trolet, P. Mary, Christophe Gaquière, B. Boudart

20es Journées Nationales Microondes, 2017, Saint Malo, France. ⟨hal-01652201⟩