Publications

• Article dans une revue

Longitudinal and transversal polarization switching in strained ferroelectrics

Laurent Baudry, Igor A. Luk'Yanchuk, A. Razumnaya

Using the multicomponent Landau-Devonshire functional we study the field-induced polarization switching in c-oriented ferroelectric phase of epitaxial perovskite film and found that two different regimes are possible: (i) longitudinal switching with change of the polarization modulus and (ii)…

Ferroelectrics, 2014, 13th International Meeting on Ferroelectricity, 461 (1), pp.22-28. ⟨10.1080/00150193.2014.889528⟩. ⟨hal-01044688⟩

• Communication dans un congrès

Electrical and chemical studies on Al2O3 passivation activation process

Matthieu Pawlik, Jean-Pierre Vilcot, Mathieu Halbwax, D. Aureau, A. Etcheberry, A. Slaoui, T. Schutz-Kuchly, R. Cabal

Passivation process is a key feature to improve the efficiency of silicon solar cells. So far, a 20nm-thick layer of Al2O3 grown by Plasma Enhanced Atomic Layer Deposition (PE-ALD) followed by a 450°C anneal during 15 to 30 min gives the best results in surface carrier recombination velocities on p…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium Y - Advanced materials and characterization techniques for solar cells II, 2014, Lille, France. ⟨hal-00964247⟩

• Article dans une revue

Bandwidth enhancement in disordered metamaterial absorbers

Jianping Hao, Eric Lheurette, Ludovic Burgnies, Etienne Okada, Didier Lippens

In this letter, we show numerically and experimentally that a positional disorder of a collection of absorbing electromagnetic wave resonators operating in the long wavelength regime dramatically enhances the absorption bandwidth. The demonstration is performed by using single-size ring-shaped thin…

Applied Physics Letters, 2014, 105, 081102, 5 p. ⟨10.1063/1.4894181⟩. ⟨hal-01058509⟩

• Article dans une revue

0.2-μm InP/GaAsSb DHBT power performance with 10 mW/μm² and 25% PAE at 94 GHz

Mohammed Zaknoune, Etienne Okada, Estelle Mairiaux, Yannick Roelens, Damien Ducatteau, Peter Frijlink, Marc Rocchi, Hassan Maher

We report a 94-GHz large-signal load-pull characterization of InP/GaAsSb double heterojunction bipolar transistors. The investigated devices have an emitter area of 0.20 × 9.5 μm2. Biased for highest power added efficiency (PAE), an output power of 6.62 mW/μm2 (11 dBm), a power gain of 5.2 dB, and…

IEEE Electron Device Letters, 2014, 35 (3), pp.321-323. ⟨10.1109/LED.2014.2298251⟩. ⟨hal-00955679⟩

• Communication dans un congrès

Polyaniline-carbon nanotubes composites - Based patch antenna

Z. Hamouda, J.-L. Wojkiewicz, A.A. Pud, B. Belaabed, S. Bergheul, T. Lasri

This paper presents the simulation and realization of a patch antenna made of composites based on Polyaniline (PANI) and carbon nanotubes (CNT). The antenna is designed to work at the frequency of 4.5 GHz; the dielectric substrates used is Rogers RT/duroid 5870 which has a dielectric permittivity…

8th European Conference on Antennas and Propagation, EuCAP 2014, Apr 2014, The Hague, Netherlands. pp.2197-2200, ⟨10.1109/EuCAP.2014.6902246⟩. ⟨hal-03538366⟩

• Communication dans un congrès

Theoretical study of the basic mechanisms of DNA damage by therapeutic radiation beams

F. Manca, Stefano Giordano, Pier Luca Palla, Grégoire Perret, E. Lartigau, Dominique Collard, H. Fujita, Fabrizio Cleri

Cancer treatments by photon radiation beams in radiotherapy is currently grounded on a rather empirical understanding of the basic mechanisms of DNA damages. It is well assessed that radiation induces single-strand and double-strand breaks in DNA, being however the various mechanisms largely…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium N - Converging technology for nanobio-applications, 2014, Lille, France. ⟨hal-00966158⟩

• Article dans une revue

Back cover

S. Arscott

Lab on a Chip, 2014, 14 (19), pp.3896. ⟨10.1039/C4LC90090A⟩. ⟨hal-02345645⟩

• Article dans une revue

Enhancing LSPR sensitivity of Au gratings through graphene coupling to Au film

Thomas Maurer, Rana Nicolas, Gaëtan Lévêque, P. Subramanian, Julien Proust, Jérémie Béal, Silvere Schuermans, Jean-Pierre Vilcot, Z. Herro, M. Kazan, Jerome Plain, Rabah Boukherroub, Abdellatif Akjouj, Bahram Djafari-Rouhani, Pierre-Michel Adam, Sabine Szunerits

A particular interesting plasmonic system is that of metallic nanostructures interacting with metal films. As the localized surface plasmon resonance (LSPR) behavior of gold nanostructures (Au NPs) on the top of a gold thin film is exquisitely sensitive to the spacer distance of the film-Au NPs, we…

Plasmonics, 2014, 9, pp.507-512. ⟨10.1007/s11468-013-9649-0⟩. ⟨hal-00994804⟩

• Communication dans un congrès

A 1D optomechanical crystal with a complete phononic band gap

Jordi Gomis-Bresco, Daniel Navarro Urrios, Mourad Oudich, Said El-Jallal, Amadeu Griol, Daniel Puerto, Emigdio Chávez-Ángel, Yan Pennec, Bahram Djafari-Rouhani, Francesc Alzina, Alejandro Martinez, Clivia Sotomayor-Torres

Joint 25th Conference of the Condensed Matter Division of the European Physical Society, and 14èmes Journées de la Matière Condensée, CMD25-JMC14, 2014, Paris, France. ⟨hal-01015239⟩

• Communication dans un congrès

Near-field microscopy : from MIR to THz

Gabriel Moreno, Antoine Pagies, Damien Ducatteau, Nicolas Clément, Tahsin Akalin, Mathias Vanwolleghem, Jean-Francois Lampin

joint 25th Conference of the Condensed Matter Division of the European Physical Society, and 14èmes Journées de la Matière Condensée, CMD25-JMC14, 2014, Paris, France. 2 p. ⟨hal-01015277⟩