Publicaciones

• Article dans une revue

Angle-dependent ray tracing simulations of reflections on pyramidal textures for silicon solar cells

Vincent Magnin, Joseph Harari, Mathieu Halbwax, S Bastide, D Cherfi, Jean-Pierre Vilcot

Pyramidal textures are commonly used to reduce reflections from silicon solar cells and improve light absorption by light trapping. They are generally modelled or characterized under normal incidence. In this work, a monolayer 3D ray tracing program taking into account the polarisation of light...

Solar Energy, 2014, 110, pp.378 - 385. ⟨10.1016/j.solener.2014.09.025⟩. ⟨hal-01403918⟩

• Article dans une revue

Modulation recognition for MIMO relaying broadcast channels with direct link

Wassim Ben Chikha, Iyad Dayoub, Walaa Hamouda, Rabah Attia

In this letter, we investigate the performance of modulation identification based on pattern recognition approach using the decision tree (J48) classifier, for multiple-inputmultipleoutput (MIMO) relaying broadcast channels with direct link (source-to-destination). The proposed system identifies...

IEEE Wireless Communications Letters, 2014, 3 (1), pp.50-53. ⟨10.1109/WCL.2013.111113.130655⟩. ⟨hal-00954477⟩

• Communication dans un congrès

Hybrid organic-inorganic nanocomposites for terahertz applications

D. Hourlier-Bahloul, Srisaran Venkatachalam, Christophe Boyaval, Guillaume Ducournau, Y. Blum, Jean-Francois Lampin

The TeraHertz (THz) portion corresponds to the part of the electromagnetic spectrum having frequencies ranging from 0.3 to 10 THz. Unlike UV or X-rays, THz photons are not energetic enough to break chemical bonds or to ionize atoms or molecules. These radiations have found widespread applications...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium I - Solution processing and properties of functional oxide thin films and nanostructures, 2014, Lille, France. ⟨hal-00964115⟩

• Communication dans un congrès

Step-conformal deposition of TiO2 and MnO2 electrodes on advanced silicon microstructures for 3D Li-ion microbatteries and micro-supercapacitors

Étienne Eustache, Camille Douard, Pascal Tilmant, Laurence Morgenroth, Pascal Roussel, Thierry Brousse, Christophe Lethien

To get autonomous smart microsystem, a miniaturized power source should be integrated. As the device is surface limited, the energy and power performances of commercially available planar microbatteries and micro-supercapacitors are not sufficient to reach this goal. To improve their performances...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, 2014, Lille, France. ⟨hal-00976637⟩

• Communication dans un congrès

Evolution of Bragg and low frequency gaps in a phononic plate formed by pillars deposited on a drilled plate

Stéphanie Hemon, Yan Pennec, Abdellatif Akjouj, Rayisa Moiseyenko, Bahram Djafari-Rouhani, Bernard Bonello

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-01015304⟩

• Communication dans un congrès

Elastic field scattered by a resonator in an acoustic metamaterial

Bernard Bonello, Rémi Marchal, Rayisa P. Moiseyenko, Yan Pennec, Bahram Djafari-Rouhani, J. Zhao, Olga Boyko-Kazymyrenko

Locally resonant sonic materials are artificially structured composites designed to exhibit negative effective mass density and/or elastic constants at frequencies below the Bragg band gap, giving rise to one or several forbidden bands in a frequency range where the elastic wavelength is much...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium D - Phonons and fluctuations in low dimensional structures, 2014, Lille, France. ⟨hal-00964114⟩

• Communication dans un congrès

Silicon pillars as resonators in an acoustical metamaterial

B. Bonello, R. Marchal, R. Moiseyenko, Yan Pennec, Bahram Djafari-Rouhani, J. Zhao, O. Boyko

We have investigated the propagation of Lamb waves in structures made of either an isolated resonant pillar or a set of pillars arranged in a line on a thin plate. The resonators as well as the plate are made of silicon. FEM computations show that two bending modes and one compressional mode are...

ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014, Nov 2014, Montreal, Canada. ⟨10.1115/IMECE2014-37914⟩. ⟨hal-03508193⟩

• Communication dans un congrès

Combined photonic-plasmonic modes inside photonic crystal cavities

Abdelali Mrabti, Said El-Jallal, Gaëtan Lévêque, Abdellatif Akjouj, Yan Pennec, Bahram Djafari-Rouhani

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-01015279⟩

• Article dans une revue

Dirac cones, topological edge states, and nontrivial flat bands in two-dimensional semiconductors with a honeycomb nanogeometry

Efterpi Kalesaki, Christophe Delerue, Cristiane Morais Smith, Wouter Beugeling, Guy Allan, Daniel Vanmaekelbergh

We study theoretically two-dimensional single-crystalline sheets of semiconductors that form a honeycomb lattice with a period below 10 nm. These systems could combine the usual semiconductor properties with Dirac bands. Using atomistic tight-binding calculations, we show that both the atomic...

Physical Review X, 2014, 4 (1), pp.0110101. ⟨10.1103/PhysRevX.4.011010⟩. ⟨hal-00939871⟩

• Article dans une revue

On the effect of δ-doping in self-switching diodes

Andreas Westlund, Ignacio Iñiguez-De-La-Torre, Per-Åke Nilsson, Tomas González, Javier Mateos, Paul Sangaré, Guillaume Ducournau, Christophe Gaquière, L. Desplanque, Xavier Wallart, Jan Grahn

Lowering the carrier concentration is presented as a way to considerably improve the performance of self-switching diode (SSD) detectors. A physics-based theoretical model was used to derive an expression for the responsivity of SSDs as a function of carrier concentration, mobility, and design...

Applied Physics Letters, 2014, 105 (9), 093505, 5 p. ⟨10.1063/1.4894806⟩. ⟨hal-01061584⟩