Publications

• Communication dans un congrès

A real-time terahertz beam monitoring application with a 1024-pixel CMOS terahertz camera module

Richard Al Hadi, Jean-Francois Lampin, Ullrich Pfeiffer

In this paper a terahertz beam monitoring application of an optically pumped molecular terahertz laser with a 1024-pixel CMOS terahertz camera is presented. The terahertz camera has been used to detect variations in real-time of the terahertz source beam around 2.52 THz.

Conference on Lasers and Electro-Optics, CLEO 2014, Laser Science to Photonic Applications, 2014, San Jose, CA, United States. ⟨hal-00975794⟩

• Communication dans un congrès

Pushing the limits of GaN-on-silicon device breakdown voltage for high power applications

Nicolas Herbecq, Isabelle Roch-Jeune, F Medjdoub

CMOS Emerging Technologies Research Symposium, 2014, Grenoble, France. ⟨hal-00976633⟩

• Article dans une revue

Dirac cones, topological edge states, and nontrivial flat bands in two-dimensional semiconductors with a honeycomb nanogeometry

Efterpi Kalesaki, Christophe Delerue, Cristiane Morais Smith, Wouter Beugeling, Guy Allan, Daniel Vanmaekelbergh

We study theoretically two-dimensional single-crystalline sheets of semiconductors that form a honeycomb lattice with a period below 10 nm. These systems could combine the usual semiconductor properties with Dirac bands. Using atomistic tight-binding calculations, we show that both the atomic…

Physical Review X, 2014, 4 (1), pp.0110101. ⟨10.1103/PhysRevX.4.011010⟩. ⟨hal-00939871⟩

• Article dans une revue

Multi-phonon scattering processes in one-dimensional anharmonic biological superlattices : understanding the dissipation of mechanical waves in mineralized tissues

Pierre-Yves Guerder, Alix C. Deymier-Black, Nichlas Z. Swinteck, Jerome O. Vasseur, Olivier Bou Matar, Krishna Muralidharan, Pierre A. Deymier

The scattering of elastic waves in a one dimensional phononic (PnC) crystal composed of alternate collagen and hydroxy-apatite constituent layers is studied. These superlattices are metaphors for mineralized tissues present in bones and teeth. The collagen is treated as an open system elastic…

Journal of the mechanical behavior of biomedical materials, 2014, 37, pp.24-32. ⟨10.1016/j.jmbbm.2014.05.001⟩. ⟨hal-01006417⟩

• Communication dans un congrès

Bulk and surface acoustic waves in solid-fluid Fibonacci layered materials

El Houssaine El Boudouti, Ilyasse Quotane, Bahram Djafari-Rouhani, Youssef El Hassouani, Victor Velasco

Joint 25th Conference of the Condensed Matter Division of the European Physical Society, and 14èmes Journées de la Matière Condensée, CMD25-JMC14, 2014, Paris, France. ⟨hal-01015265⟩

• Communication dans un congrès

Synthesis and electrical characterisations of a low work function cesium oxide coating for high efficiency thermionic energy converter

François Morini, J.F. Robillard, Stéphane Monfray, I.D. Baikie, Thomas Skotnicki, Emmanuel Dubois

One main challenge associated with solid-state thermoelectric materials is to combine electron-crystal electrical conductivity and phonon-glass thermal properties that are difficult to conciliate. A markedly different principle of thermoelectric conversion is based on the micro-thermionic generator…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium BB - Materials by design for energy applications through theory and experiment, 2014, Lille, France. ⟨hal-00966136⟩

• Article dans une revue

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⟩

• Article dans une revue

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⟩

• Communication dans un congrès

Current-voltage characteristics of (Mo/Au)/AlGaN/GaN/Si Schottky diodes

H. Mosbahi, M. Charfeddine, M. Gassoumi, Christophe Gaquière, M.A. Zaidi, H. Maaref

The AlGaN/GaN high electron mobility transistors (HEMTs) is a promising candidate for microwave applications due to its high power and high temperature. owing to their large and direct band gap, as well as favorable transport properties. Moreover, III-V nitrides could be suitable for the emitters…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium X - Materials research for group IV semiconductors : growth, characterization and technological developments, 2014, Lille, France. ⟨hal-00961393⟩

• Article dans une revue

Measurement of the thermal conductivity of polydimethylsiloxane polymer using the three omega method

Nadine Al-Khudary, Pierre-Yves Cresson, Yovan Orlic, Philippe Coquet, Philippe Pernod, T. Lasri

Polydimethylsiloxane (PDMS) has widely appeared in different electronic and medical applications. The knowledge of the thermal properties of PDMS and especially its thermal conductivity is required while processing PDMS to design a particular device. In this paper measurement of the thermal…

Key Engineering Materials, 2014, 613, pp.259-266. ⟨10.4028/www.scientific.net/KEM.613.259⟩. ⟨hal-00992702⟩