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

Picosecond ultrasonic investigations of phonons in 2D nano-scaled lattices

J.F. Robillard, Arnaud Devos, I. Roch-Jeune

Journal of Physics: Conference Series, 2007, 92, pp.012027-1-4. ⟨10.1088/1742-6596/92/1/012027⟩. ⟨hal-00285623⟩

• Article dans une revue

Raman imaging of graphene

D. Graf, F. Molitor, K. Ensslin, C. Stampfer, A. Jungen, C. Hierold, L. Wirtz

Solid State Communications, 2007, 143, pp.44-46. ⟨10.1016/j.ssc.2007.01.050⟩. ⟨hal-00283157⟩

• Article dans une revue

Low frequency noise in InAlAs/InGaAs modulation doped field effect transistors with 50-nm gate length

M.E. Levinshtein, S.L. Rumyantsev, R. Tauk, S. Boubanga, N. Dyakonova, W. Knap, A. Shchepetov, S. Bollaert, Yannick Roelens, M.S. Shur

Journal of Applied Physics, 2007, 102 (6), pp.064506. ⟨10.1063/1.2781087⟩. ⟨hal-00283040⟩

• Article dans une revue

Micrometric ripples in a capillary tube, the effect of micro gravity

A. Merlen, Farzam Zoueshtiagh, P.J. Thomas, V. Thomy

Microgravity Science and Technology, 2007, 19, pp.60-61. ⟨hal-00285704⟩

• Communication dans un congrès

Impact of interfaces on the dynamic electrical properties of molecular junctions

D. Vuillaume

Princeton Discussions on Organic Materials, Interfaces and Devices, 2007, Princeton, NJ, United States. ⟨hal-00286362⟩

• Communication dans un congrès

The metamaterial emerging technology : the Network of Excellence METAMORPHOSE

D. Lippens, S. Tretyakov

31th Workshop on Compound Semiconductor Devices and Integrated Circuits, WOCSDICE 2007, 2007, Venice, Italy. ⟨hal-00286297⟩