Publicaciones

• 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⟩

• Communication dans un congrès

Integrated horn antenna for microstrip waveguide THz quantum cascade lasers

Stefano Barbieri, Jesse Alton, Sukhdeep S Dhillon, Carlo Sirtori, Jean-Francois Lampin, Tahsin Akalin, Emilien Peytavit, Harvey E. Beere, David Ritchie

A horn-antenna is integrated on a microstrip waveguide QCL emitting at 2.0 THz. This allows a better impedance match to free space, which improves substantially the directivity of the beam and the radiation outcoupling.

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference, May 2007, Baltimore, MD, United States. pp.CWP4, ⟨10.1109/CLEO.2007.4453214⟩. ⟨hal-00284100⟩

• Autre publication scientifique

Contribution à la mise en place d'une plateforme de communication et de localisation en technologie ultra large bande en gamme millimétrique

Michael Bocquet

2007. ⟨hal-00285733⟩

• Communication dans un congrès

Patch antenna at frequency 2.35 GHz for telecommunications applications

K. Elkinani, S. Bri, A. Nakheli, O. Benzaim, A. Mamouni

Progress in Electromagnetics Research Symposium, PIERS2007, 2007, Prague, Czech Republic. ⟨hal-00285612⟩

• Communication dans un congrès

On the electric fields contributions to ferroelectric thin films switching properties

Laurent Baudry

International Meeting on Materials For Electronic Applications, IMMEA-2007, 2007, Marrakech, Morocco. ⟨hal-00285611⟩

• Communication dans un congrès

Simulation tools for physical simulation of electronic devices

Laurent Baudry, M. Charef, Christophe Dalle, François Dessenne, Jean-Luc Thobel

NATO Advanced Research Workshop on Smart Materials for Energy, Communications and Security, 2007 ARW-SMECS, 2007, Marrakech, Morocco. ⟨hal-00285610⟩

• Communication dans un congrès

Nanotechnologies : la prochaine révolution industrielle ?

H. Happy, A. Cappy

TELECOM'2007 & 5èmes Journées Franco-Maghrébines des Micro-ondes et leurs Applications, 2007, Fès, Maroc. ⟨hal-00286245⟩