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Communication dans un congrès

Electrooptic and converse-piezoelectric properties of epitaxial GaN/Si structures for optoelectronic applications

Mireille Cuniot-Ponsard, Irma Saraswati, S.-M. Ko, Mathieu Halbwax, Y.-H. Cho, N.-R. Poespawati, El Hadj Dogheche

In order to take advantage in all-optic optoelectronic devices, we have investigated the optical and piezoelectric properties of GaN films deposited on (111) silicon. Films are epitaxially grown by MOCVD, thanks to a buffer made of (Al, Ga) N intermediate layers [1]. Structural properties of GaN…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium K - Challenges for group III nitride semiconductors for solid state lighting and beyond, May 2014, Lille, France. ⟨hal-00961405⟩

Communication dans un congrès

UWB System Based on the M-OAM Modulation in IEEE.802.15.3a Channel

Khadija Hamidoun, Raja Elassali, Yassin El Hillali, Khalid Elbaamrani, Atika Rivenq, F. Elbahhar

Known for many years but unexploited in the field of communications, ultra wideband systems (UWB) can be a solution to the saturation of the frequency bands. The advantage of such systems is that they are inexpensive in energy because of the limitations imposed by the standard. Our work is to…

5th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Apr 2014, Costa de Caparica, Portugal. pp.507-514, ⟨10.1007/978-3-642-54734-8_56⟩. ⟨hal-01274817⟩

Article dans une revue

Experimental analysis of dense multipath components in an industrial environment

Emmeric Tanghe, Davy Gaillot, M. Lienard, Luc Martens, Wout Joseph

This work presents an analysis of dense multipath components (DMC) in an industrial workshop. Radio channel sounding was performed with a vector network analyzer and virtual antenna arrays. The specular and dense multipath components were estimated with the RiMAX algorithm. The DMC covariance…

IEEE Transactions on Antennas and Propagation, 2014, 62, pp.3797-3805. ⟨10.1109/TAP.2014.2321162⟩. ⟨hal-01044857⟩

Communication dans un congrès

[Invited] Self-assembly of organic molecules on semiconductor surfaces

Fabrizio Cleri

3rd Korea-France Joint Symposium, 2014, Seoul, South Korea. ⟨hal-01054999⟩

Communication dans un congrès

Band gap formation and elastic wave transmission in two-dimentional surface phononic crystal

Sergey Yankin, Abdelkrim Talbi, Yu Du, Jean-Claude Gerbedoen, Vladimir Preobrazhensky, Philippe Pernod, Olivier Bou Matar

Using finite element method analysis of surface acoustic wave (SAW) propagation in the phononic crystal in a form of periodic lattice from nickel pillars, located on a piezoelectric substrate of Y+128°-cut LiNbO3, has been conducted. Amplitude and phase characteristics of SAW propagation through…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 4 p. ⟨hal-01018435⟩

Communication dans un congrès

Characterization of InxGa1-xN/GaN MQWs heterostructures for solar cells applications

Ezgi Dogmus, Ludovic Largeau, Natalie Rolland, F Medjdoub

The high quality and high indium content InxGa1-xN/GaN (x~ 0.10 and x~0.30) multiple quantum wells (MQWs) grown on sapphire (0001) by metal-organic chemical vapor deposition (MOCVD) were investigated by High Angle Annular Dark Field Scanning Transmission Electron Microscopy (HAADF-STEM), Energy…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 3 p. ⟨hal-01018409⟩

Communication dans un congrès

Epitaxial growth of MgO tunnel barrier on epitaxial graphene

Florian Godel, Emmanuelle Pichonat, Dominique Vignaud, Hicham Majjad, Dominik Metten, Yves Henry, Stéphane Berciaud, Jean-François Dayen, David Halley

7th CNRS-EWHA Winter School 2014, 2014, Strasbourg, France. ⟨hal-01055000⟩