Publications

• ART

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⟩

• ART

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⟩

• ART

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⟩

• PATENT

Adaptateur d'impédance automatique coaxiale

Nicolas Vellas, Christophe Gaquière, Frédéric Bue-Erkmen, Damien Ducatteau

France, N° de brevet: FR2888670 (A1). 2007. ⟨hal-00372344⟩

• ART

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⟩

• ART

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⟩

• COMM

A 2GHz 0.25µm SiGe BiCMOS oscillator with flip-chip mounted BAW resonator

S. Razafimandimby, A. Cathelin, J. Lajoinie, D. Belot, A. Kaiser

IEEE International Solid-State Circuits Conference, ISSCC 2007, 2007, United States. pp.580-581, ⟨10.1109/ISSCC.2007.373553⟩. ⟨hal-00284382⟩

• COMM

AlGaN/GaN HEMTs on (001) oriented silicon substrate based on 100nm SiN recessed gate technology for low cost device fabrication

S. Boulay, S. Touati, A. Sar, Virginie Hoel, Christophe Gaquière, Jean-Claude de Jaeger, S. Joblot, Y. Cordier, F. Semond, J. Massies

2nd European Microwave Integrated Circuits Conference, EuMIC 2007, 2007, Germany. pp.96-99, ⟨10.1109/EMICC.2007.4412656⟩. ⟨hal-00284403⟩

• COMM

Improving channel estimation in power line communications by using linear interpolation revitalized

Patrick Corlay, David Buèche, François-Xavier Coudoux, Marc G. Gazalet, Marc Slachciak

The power line channel can be considered, from a physical point of view, as a multipath channel due to the numerous reflections created by the impedance mismatches. The channel is stationary piecewise with sudden variations. Pilot symbol assisted modulation (PSAM), combined with interpolation…

IEEE International Symposium on Power Line Communications and Its Applications, ISPLC'07, Mar 2007, Pisa, Italy. pp.471-475, ⟨10.1109/ISPLC.2007.371170⟩. ⟨hal-00284413⟩

• COMM

AlGaN/GaN HEMT device characterisation using an active loadpull large signal network analizer

Christophe Gaquière, M. Werquin, D. Ducatteau, E. Morvan, Jean-Claude de Jaeger

11th International Symposium on Microwave and Optical Technology, ISMOT-2007, 2007, Italy. pp.491-494. ⟨hal-00284406⟩