Publications

• Communication dans un congrès

A new method to improve the efficiency of the heat flow path of a micro thermoelectric generator

Z. Yuan, K. Ziouche, Z. Bougrioua, P. Godts, T. Lasri, D. Leclercq

9th European Conference on Thermoelectrics, ECT 2011, 2011, Thessaloniki, Greece. pp.435-438, ⟨10.1063/1.4731589⟩. ⟨hal-00800350⟩

• Communication dans un congrès

A novel method to fabricate full-kerfed high-frequency (>100MHz) ultrasonic array transducers

Jin-Ying Zhang, X.M. Ji, J. Zhou, Y.P. Huang, Wei-Jiang Xu, Julien Carlier, J.M. Gao, Bertrand Nongaillard

High-frequency ultrasonic transducer arrays are essential for efficient imaging in clinical analysis and nondestructive evaluation (NDE). However, the fabrication of piezoelectric transducers is really a great challenge due to the small features in piezoelectric films. This paper describes a novel…

IEEE International Ultrasonics Symposium, IUS 2011, 2011, Orlando, FL, United States. pp.1739-1742, ⟨10.1109/ULTSYM.2011.0434⟩. ⟨hal-00800465⟩

• Communication dans un congrès

A novel method for fabrication of high-frequency (>100 MHz) ZnO ultrasonic array transducers on silicon substrates

Wei-Jiang Xu, X.M. Ji, J.M. Gao, Julien Carlier, Jin-Ying Zhang, Bertrand Nongaillard, Y.P. Huang, Bogdan Piwakowski

High-frequency ultrasonic transducer arrays are essential for efficient imaging in clinical analysis and nondestructive evaluation (NDE). However, the fabrication of piezoelectric transducers is really a great challenge due to the small features in an array. A novel technique is presented to…

International Congress on Ultrasonics, ICU 2011, 2011, Gdansk, Poland. pp.679-682, ⟨10.1063/1.3703274⟩. ⟨hal-00800468⟩

• Communication dans un congrès

Evaluation of concrete cover by surface wave technique : identification procedure

Bogdan Piwakowski, M. Kaczmarek, P. Safinowski

International Congress on Ultrasonics, ICU 2011, 2011, Gdansk, Poland. pp.276-279, ⟨10.1063/1.3703188⟩. ⟨hal-00800469⟩

• Communication dans un congrès

Micro-beam actuator based on conducting interpenetrating polymer networks : from patterning process to actuation in open air

Alexandre Khaldi, Cedric Plesse, Caroline Soyer, David Troadec, F. Vidal, Eric Cattan, C. Chevrot, D. Teyssie

16th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS'11, 2011, Beijing, China. pp.462-465, ⟨10.1109/TRANSDUCERS.2011.5969605⟩. ⟨hal-00800438⟩

• Communication dans un congrès

Characterization of structure of porous materials by ultrasonic reflectometry

M. Kaczmarek, Bogdan Piwakowski, R. Drelich

International Congress on Ultrasonics, ICU 2011, 2011, Gdansk, Poland. pp.416-419, ⟨10.1063/1.3703217⟩. ⟨hal-00800447⟩

• Communication dans un congrès

Combined STM and four-probe resistivity measurements on single semiconductor nanowires

Maxime Berthe, Corentin Durand, Tao Xu, Jean-Philippe Nys, Philippe Caroff, B. Grandidier

Transport measurements on free-standing nanostructures with clean and reconstructed facets require an instrumentation based on electrical probes that scan materials at the atomic scale with fine tuning in the establishment of the electrical contact. We describe a multiple probe tunneling microscope…

1st AtMol International Workshop on Atomic Scale Interconnection Machine, Jun 2011, Singapore, Singapore. pp.107-118, ⟨10.1007/978-3-642-28172-3_8⟩. ⟨hal-00800076⟩

• Article dans une revue

Negative refraction of elastic waves in 2D phononic crystals : contribution of resonant transmissions to the construction of the image of a point source

Anne-Christine Hladky, Charles Croënne, Bertrand Dubus, Jerome O. Vasseur, L. Haumesser, D. Manga, B. Morvan

Negative refraction properties of a two-dimensional phononic crystal (PC), made of a triangular lattice of steel rods embedded in epoxy are investigated both experimentally and numerically. First, experiments have been carried out on a prism shaped PC immersed in water. Then, for focusing purposes…

AIP Advances, 2011, 1 (4), pp.0414054. ⟨10.1063/1.3676177⟩. ⟨hal-00783381⟩

• Article dans une revue

Demonstration of low leakage current and high polarization in ultrathin AlN/GaN high electron mobility transistors grown on silicon substrate

F Medjdoub, Malek Zegaoui, N. Rolland, Paul-Alain Rolland

High quality AlN/GaN heterostructures grown on silicon substrate are demonstrated. It is found that high carrier concentration can be achieved whereas circular diodes showed a low leakage current up to 200 V reverse bias. 200 nm gate length AlN/GaN transistors exhibited a drain current density of 1…

Applied Physics Letters, 2011, 98 (22), pp.223502-1-3. ⟨10.1063/1.3595943⟩. ⟨hal-00603008⟩

• Article dans une revue

Microwave performance of 100 nm-gate In0.53Ga0.47As/In0.52Al0.48As high electron mobility transistors on plastic flexible substrate

J. Shi, Nicolas Wichmann, Yannick Roelens, S. Bollaert

Applied Physics Letters, 2011, 99, pp.203505-1-3. ⟨10.1063/1.3663533⟩. ⟨hal-00783377⟩