Publicaciones

• POSTER

A controllable wet-etching method to fabricate high-frequency ZnO ultrasonic arrays

Jin-Ying Zhang, Wei-Jiang Xu, G. Han, Julien Carlier, X.M. Ji, S.M. Chen, B. Xu

A controllable wet-chemical etching method is presented to fabricate thick-film ZnO-based ultrasonic transducer arrays. The wet-chemical etchant is NH4Cl aqueous solution with a concentration of 10 wt% and the etching rate is 60 nm/min at room temperature. A ZnO array is achieved due to a small...

International Congress on Ultrasonics, ICU 2013, May 2013, Singapoure, Singapore. Proceedings of the International Congress on Ultrasonics, ICU 2013, pp.25-30, 2013, ⟨10.3850/978-981-07-5938-4⟩. ⟨hal-03709658⟩

• ART

Structural and compositional characterization of MOVPE GaN thin films transferred from sapphire to glass substrates using chemical lift-off and room temperature direct wafer bonding and GaN wafer scale MOVPE growth on ZnO-buffered sapphire

S. Gautier, T. Moudakir, G. Patriarche, D.J. Rogers, V. E. Sandana, F. Hosseini Teherani, P. Bove, Y. El Gmili, K. Pantzas, S. Sundaram, David Troadec, P.L. Voss, M. Razeghi, A. Ougazzaden

Journal of Crystal Growth, 2013, 370, pp.63-67. ⟨10.1016/j.jcrysgro.2012.08.048⟩. ⟨hal-00784989⟩

• COMM

Caractérisation et extraction du schéma équivalent petit signal en bande G de transistor bipolaire à hétérojonction SiGe:C de dernière génération et montrant des performances fT/fmax=300/400 GHz

Marina Deng, Thomas Quémerais, Daniel Gloria, Pascal Chevalier, Sylvie Lepilliet, Francois Danneville, Gilles Dambrine

La validation jusqu’à 220 GHz du modèle petit signal de transistors bipolaires à hétérojonction Si/SiGe de la technologie B5T de STMicroelectronics de dernière génération est pour la première fois présentée. Ce modèle équivalent petit signal a été extrait jusqu’à 110 GHz et validé par des mesures...

18èmes Journées Nationales Microondes, JNM 2013, May 2013, Paris, France. papier J2-DA-P11, 4 p. ⟨hal-01402473⟩

• ART

Optical properties of aluminum nitride thin films grown by direct-current magnetron sputtering close to epitaxy

Arnaud Stolz, Ali Soltani, Bassam Abdallah, Joël Charrier, D. Deresmes, Pierre-Yves Jouan, Mohamed Abdou Djouadi, El Hadj Dogheche, Jean-Claude de Jaeger

Low-temperature Aluminum Nitride (AlN) thin films with a thickness of 3 μm were deposited by Direct-Current magnetron sputtering on sapphire substrate. They present optical properties similar to those of epitaxially grown films. Different characterization methods such as X-Ray Diffraction,...

Thin Solid Films, 2013, 534, pp.442-445. ⟨10.1016/j.tsf.2013.01.086⟩. ⟨hal-01264133⟩

• COMM

Transport properties of strained nanowires and devices

Christophe Delerue, V.H. Nguyen, Yann Michel Niquet, Triozon F.

Materials Research Society Spring Meeting, MRS Spring 2013, Symposium R : Nanostructured Semiconductors and Nanotechnology, May 2013, San Francisco, United States. ⟨hal-03317308⟩

• ART

Phase transformation of PbSe/CdSe nanocrystals from core-shell to Janus structure studied by photoemission spectroscopy

Justin Habinshuti, Pierre Capiod, T.H. Nguyen, Y. Justo, F.J. Avila, M.C. Asensio, F. Bournel, J.J. Gallet, I. Vobornik, J. Fujii, A. Addad, K. Lambert, Jean-Philippe Nys, Yannick Lambert, Z. Hens, A. Osherov, Y. Golan, O. Robbe, S. Turrell, B. Grandidier

Photoelectron spectroscopic measurements have been performed, with synchrotron radiation on PbSe/CdSe heteronanocrystals that initially consist of core-shell structures. The study of the chemical states of the main elements in the nanocrystals shows a reproducible and progressive change in the...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2013, 87, pp.184102-1 - 184102-11. ⟨10.1103/PhysRevB.87.184102⟩. ⟨hal-00829514⟩

• ART

Clipping demapper for LDPC decoding in impulsive channel

Hassen Benmaad, Alban Goupil, Laurent Clavier, Guillaume Gelle

This paper deals with the performance of Low-Density Parity-Check codes in impulsive interference modeled by α-stable random variables. In case of α-stable noise, the optimal inputs of the belief propagation decoder are complex to obtain. We propose to use the simple clipping approach that reduces...

IEEE Communications Letters, 2013, 17 (5), pp.968-971. ⟨10.1109/LCOMM.2013.031913.130060⟩. ⟨hal-00851898⟩

• COMM

Surfaces absorbantes très large bande à base de métamatériaux

J. Hao, Vincent Laur, Azar Maalouf, Véronique Sadaune, Ludovic Burgnies, Jean-Luc Mattei, Alexis Chevalier, Eric Lheurette, Patrick Queffelec, Didier Lippens

Journées Nationales Microondes, May 2013, Inconnue, France. ⟨hal-00845778⟩

• ART

Suppression of crack generation in AlGaN/GaN distributed Bragg reflectors grown by MOVPE

T. Moudakir, S. Gautier, S. Suresh, M. Abid, Y. El Gmili, G. Patriarche, K. Pantzas, David Troadec, J. Jacquet, F. Genty, P.L. Voss, A. Ougazzaden

Journal of Crystal Growth, 2013, 370, pp.12-15. ⟨10.1016/j.jcrysgro.2012.09.061⟩. ⟨hal-00784993⟩

• COMM

Conception et mesure d'une antenne à 60 GHz imprimée par jet d'encre sur un substrat souple PEN

A. Bisognin, D. Titz, J. Thielleux, W. Wei, H. Happy, Fabien Ferrero, Cyril Luxey, G. Jacquemod, P. Brachat

18èmes Journées Nationales Microondes (JNM), May 2013, Paris, France. J1-TM2-4.pdf. ⟨hal-00862544⟩