Publications

• ART

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⟩

• COMM

Mesure de la permittivité complexe du polydimethylsiloxane (PDMS) jusqu'à 220 GHz pour la mise en oeuvre d'une électronique souple

Pierre-Yves Cresson, Yovan Orlic, Jean-François Legier, Erick Paleczny, Luc Dubois, Philippe Coquet, Nicolas Tiercelin, Sami Hage-Ali, Philippe Pernod, Vladimir Preobrazhensky, Tuami Lasri

Des lignes coplanaires sont réalisées sur un film souple de Polydimethylsiloxane (PDMS) de 182 μm d'épaisseur. Après avoir mesuré les paramètres [S] de ces lignes, des algorithmes ajustent la permittivité complexe du matériau pour que les valeurs des constantes de propagation extraites des…

13èmes Journées de Caractérisation Microondes et Matériaux, JCMM2014, 2014, Nantes, France. article 9, 4 p. ⟨hal-01005731⟩

• ART

Electrical properties of lead-free KNN films on SRO/STO by RF magnetron sputtering

T. Li, G.S. Wang, K. Li, G. Du, Y. Chen, Z.Y. Zhou, Denis Remiens, X.L. Dong

Ceramics International, 2014, 40, pp.1195-1198. ⟨10.1016/j.ceramint.2013.07.005⟩. ⟨hal-00903762⟩

• COMM

Pushing the limits of GaN-on-silicon device breakdown voltage for high power applications

Nicolas Herbecq, Isabelle Roch-Jeune, F Medjdoub

CMOS Emerging Technologies Research Symposium, 2014, Grenoble, France. ⟨hal-00976633⟩

• COMM

Acousto-optical tunable transmissive grating beam splitter

Anthony Dieulangard, Jean-Claude Kastelik, Samuel Dupont, Joseph Gazalet

We present a tunable transmissive grating beam splitter for multiple laser line separation based on acousto-optic interaction in tellurium dioxide. Acousto-optic devices are well known for light modulation, frequency shifting, filtration or deflection. For a deflector, the incident light beam is…

SPIE Photonics West, OPTO 2014, Conference 8982 - Optical Components and Materials XI, 2014, San Francisco, CA, United States. 89821H, 8 p., ⟨10.1117/12.2036327⟩. ⟨hal-00964449⟩

• COMM

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⟩

• COMM

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⟩

• COMM

Scanning tunneling microscopy of GaAs/GaAsSb nanowires

Adrian Díaz Álvarez, Pierre Capiod, Maxime Berthe, Tao Xu, Jean-Philippe Nys, Isabelle Lefebvre, Philippe Caroff, Philipp Ebert, B. Grandidier

Understanding surface structure and surface composition is of particular importance for semiconductor nanowire applications, since they might strongly contribute to the electrical, optical and thermal properties of the Nanowires. A prototypical material is GaAs, where polytype inclusions consisting…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium E - Defect-induced effects in nanomaterials, 2014, Lille, France. ⟨hal-00964089⟩

• ART

Dispersion properties and low infrared optical losses in epitaxial AlN on sapphire substrate in the visible and infrared range

Ali Soltani, Arnaud Stolz, Joël Charrier, Maghnia Mattalah, Jean-Claude Gerbedoen, Hassan Ali Barkad, Vincent Mortet, Michel Rousseau, Nour Eddine Bourzgui, Ali Benmoussa, Jean-Claude de Jaeger

Optical waveguiding properties of a thick wurtzite aluminum nitride highly [002]-textured hetero-epitaxial film on (001) basal plane of sapphire substrate are studied. The physical properties of the film are determined by X-ray diffraction, atomic force microscopy, microRaman, and photocurrent…

Journal of Applied Physics, 2014, 115 (16), pp.163515. ⟨10.1063/1.4873236⟩. ⟨hal-00987345⟩

• ART

Optimized V-shape design of GaN nanodiodes for the generation of Gunn oscillations

J.F. Millithaler, I. Iniguez-De-La-Torre, A. Iniguez-De-La-Torre, T. Gonz Alez, P. Sangaré, Guillaume Ducournau, Christophe Gaquière, J. Mateos

In this work, recent advances in the design of GaN planar Gunn diodes with asymmetric shape, socalled self-switching diodes, are presented. A particular geometry for the nanodiode is proposed, referred as V-shape, where the width of the channel is intentionally increased as approaching the anode.…

Applied Physics Letters, 2014, 104, 073509, 4 p. ⟨10.1063/1.4866166⟩. ⟨hal-00951554⟩