Publicaciones

• 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⟩

• ART

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⟩

• ART

Effect of polarization switching cycles on the dielectric response and Rayleigh constant in Pb0.4Sr0.6TiO3 thin films

Kui Li, Xianlin Dong, Denis R Émiens, Tao Li, Ying Chen, Genshui Wang

Pb0.4Sr0.6TiO3 thin films with good fatigue endurance were crystallized at low temperature compatible with the current semiconductor technology. The effect of polarization switching cycles on the ferroelectric properties, dielectric response, and Rayleigh constant in thin films were systematically...

Journal of Applied Physics, 2014, 115 (6), pp.064102. ⟨10.1063/1.4864761⟩. ⟨hal-00947581⟩

• COMM

Highly tunable Fabry-Perot resonators using piezoelectric phononic crystals

Bertrand Dubus, Marie -Fraise Ponge, Anne-Christine Hladky, Jerome O. Vasseur, Mai Phamthi

Theoretical and experimental analyses of piezoelectric stacks submitted to periodical electrical boundary conditions via electrodes, are conducted. These structures are shown to exhibit Bragg band gaps which are switched on or off by setting electrodes in short or open circuit. Band gap frequency...

IEEE International Ultrasonics Symposium (IUS), Sep 2014, Chicago, United States. paper 5B-6, 154-157, ⟨10.1109/ULTSYM.2014.0039⟩. ⟨hal-03300131⟩

• ART

Extra-low parasitic gate-to-contacts capacitance architecture for sub-14 nm transistor nodes

Heimanu Niebojewski, Cyrille Le Royer, Y. Morand, Olivier Rozeau, Marie-Anne Jaud, Emmanuel Dubois, Thierry Poiroux, D. Bensahel

We investigate in this work an original contact architecture to address 64 nm pitch transistor technology. This architecture, studied here in the fully-depleted silicon-on insulator (FDSOI) flavour, remains suitable for planar and 3D (trigate, FinFET) approaches. It includes a recessed gate-first...

Solid-State Electronics, 2014, 97, pp.45-51. ⟨10.1016/j.sse.2014.04.028⟩. ⟨hal-01000014⟩

• COMM

All 2D graphene-metal chalcogenides hybrid photodetector

Adrien Robin, Emmanuel Lhuillier, Emiliano Pallecchi, Abdelkarim Ouerghi, Benoit Dubertret

30 years of Colloidal Quantum Dots, 2014, Paris, France. ⟨hal-01015220⟩

• ART

Investigation on power line communication in aircrafts

Virginie Degardin, Pierre Laly, M. Lienard, Pierre Degauque

Power line communication is envisaged for the future more electric aircraft and the scenario studied in this work deals with the cabin lighting system, since its tree-shaped architecture is sufficiently complicated to be representative of many other aircraft harness configurations. The statistical...

IET Communications, 2014, 8, pp.1868-1874. ⟨10.1049/iet-com.2013.0828⟩. ⟨hal-01015202⟩

• ART

Gold-free ternary III-V antimonide nanowire arrays on silicon : twin-free down to the first bilayer

Sònia Conesa-Boj, Dominik Kriegner, Xiang-Lei Han, S.R. Plissard, Xavier Wallart, Julian Stangl, Anna Fontcuberta I Morral, Philippe Caroff

With the continued maturation of III-V nanowire research, expectations of material quality should be concomitantly raised. Ideally, III-V nanowires integrated on silicon should be entirely free of extended planar defects such as twins, stacking faults, or polytypism, position-controlled for...

Nano Letters, 2014, 14, pp.326-332. ⟨10.1021/nl404085a⟩. ⟨hal-00926662⟩

• OTHER

Photomélangeurs THz efficaces à base de collage de substrat métallique employant l'indium

Philipp Latzel

2014. ⟨hal-00981856⟩