Publications

• Article dans une revue

Inhibition of interface pollution in AlGaN/GaN HEMT structures regrown on semi-insulating GaN templates

M. Azize, Z. Bougrioua, P. Gibart

AlGaN/GaN high-electron mobility transistors (HEMTs) structures regrown by metalorganic vapour phase epitaxy (MOVPE) on semi-insulating (SI) GaN templates, after exposure to air, results in the presence of parasitic conducting channels at regrowth interface. Air contamination of the SI GaN…

Journal of Crystal Growth, 2007, 299 (1), pp.103-108. ⟨10.1016/j.jcrysgro.2006.10.250⟩. ⟨hal-02906690⟩

• Article dans une revue

Low-Operating-Voltage Organic Transistors Made of Bifunctional Self-Assembled Monolayers

M. Mottaghi, P. Lang, F. Rodriguez, Anna Rumyantseva, Abderrahim Yassar, G. Horowitz, S. Lenfant, D. Tondelier, D. Vuillaume

Self-assembled monolayers (SAMs) are molecular assemblies that spontaneously form on an appropriate substrate dipped into a solution of an active surfactant in an organic solvent. Organic field-effect transistors are described, built on an SAM made of bifunctional molecules comprising a short alkyl…

Advanced Functional Materials, 2007, 17 (4), pp.597-604. ⟨10.1002/adfm.200600179⟩. ⟨hal-00826656⟩

• Article dans une revue

Critical temperatures of 70%Pb(Mg1∕3Nb2∕3)O3–30%PbTiO3 thin films investigated by dielectric, ferroelectric, and structural measurements

X.J. Meng, Denis Remiens, Mickael Detalle, B. Dkhil, Jl. Sun, Jh. Chu

The authors have investigated the temperature dependence of the ferroelectric, dielectric, and structural properties of 70%Pb(Mg1∕3Nb2∕3)O3–30%PbTiO3 thin films. Two critical temperatures were evidenced. The first one occurring around 410K corresponds to the bulk paraelectric-ferroelectric phase…

Applied Physics Letters, 2007, 90 (13), pp.132904. ⟨10.1063/1.2716312⟩. ⟨hal-00176457⟩

• Article dans une revue

Integrated terahertz TEM horn antenna

Emilien Peytavit, Jean-Francois Lampin, Tahsin Akalin, L. Desplanque

A terahertz transverse electromagnetic horn antenna (THz-TEMHA) monolithically integrated on a gallium arsenide substrate has been studied by means of subpicosecond pulses generated and measured on a 50 Ω coplanar waveguide. The measured reflection coefficient is below −10 dB from 100 GHz to about…

Electronics Letters, 2007, 43 (2), pp.73-75. ⟨10.1049/el:20073679⟩. ⟨hal-00255785⟩

• Article dans une revue

Surface and confined acoustic waves in finite size 1D phononic solid-fluid phononic crystals

Y. El Hassouani, E.H. El Boudouti, Bahram Djafari-Rouhani, R. Rais

Journal of Physics: Conference Series, 2007, 92, pp.012113-1-4. ⟨10.1088/1742-6596/92/1/012113⟩. ⟨hal-00285667⟩

• Article dans une revue

Design, fabrication, and measurement of benzocyclobutene polymer zero-level packaging for millimeter-wave applications

S. Seok, N. Rolland, P.A. Rolland

IEEE Transactions on Microwave Theory and Techniques, 2007, 55, pp.1040-1045. ⟨10.1109/TMTT.2007.895411⟩. ⟨hal-00255767⟩

• Article dans une revue

An Impulse Response Model for the 60 Ghz Channel Based on Spectral Techniques of alpha-stable Processes

Nourddine Azzaoui, Laurent Clavier

In order to make realistic simulations of the radio propagation mechanism in ultra-wide band channels, an appropriate model is needed. In this paper we propose a new technique to model the impulse response of the 60 Ghz channel. This new approach is based on the spectral analysis of alpha-stable…

Proceeding of IEEE International Conference on communications, 2007, pp.5040 - 5045. ⟨10.1109/ICC.2007.832⟩. ⟨hal-00255914⟩

• Article dans une revue

Parametrical magnetoelastic interaction in porous and composite magnetic materials

V.V. Rudenko, V.N. Berzhansky, S.N. Polulyakh, Philippe Pernod, V.L. Preobrazhensky, S. Busbridge

Uchenye Zapiski, 2007, 20(59), pp.128-135. ⟨hal-00255802⟩

• Communication dans un congrès

Contact-less sensors for temperature measurements by microwave radiometry in medical and industrial applications

Luc Dubois, C. Ricard, Pierre-Yves Cresson, J. Pribetich

Proceedings of the 12th International Symposium on Antennas and Propagation, ISAP 2007, 2007, Niigata, Japan. ⟨hal-00369936⟩

• Communication dans un congrès

Analyse physique et thermique des structures TLM AlGaN/GaN

Brahim Benbakhti, Michel Rousseau, Ali Soltani, Jean-Claude de Jaeger

Pour les applications de puissance, la puissance dissipée dans un composant à base de GaN devient trèssignificative et par conséquent produit un effet d’auto-échauffement très important. L’auto-échauffement dans lecomposant augmente considérablement la température de réseau et donc dégrade les…

15èmes Journées Nationales Microondes, JNM 2007, May 2007, Toulouse, France. pp.9B3-1-4. ⟨hal-00370328⟩