Publicaciones

• Article dans une revue

Effect of passivation on microwave power performances of AlGaN/GaN/Si HEMTs

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

This paper reports on the use of plasma assisted molecular beam epitaxy of AlGaN/GaN high electron mobility transistors (HEMTs) grown on silicon substrate. Surface passivation effects on AlGaN/GaN HEMTs were studied using SiO2/SiN dielectric layers grown by plasma enhanced chemical vapor deposition...

Sensors & Transducers., 2014, 27, pp.277-279. ⟨hal-01005128⟩

• Article dans une revue

Thermal management of electronic devices by composite materials integrated in silicon

Emmanuel Ollier, U. Soupremanien, V. Remondiere, J. Dijon, H. Le Poche, A.L. Seiler, F. Lefevre, S. Lips, Christophe Kinkelin, Nathalie Rolland, Paul-Alain Rolland, Malek Zegaoui, S. Lhostis, P. Ancey, B. Descouts, Y. Kaplan

As the power of electronic systems is increasing, thermal fluxes are getting higher, up to more than 100 W/cm2 in the more critical cases. They result in hot spots with various consequences, especially performance reduction and reliability issues. Most of the prior research has been focused on...

Microelectronic Engineering, 2014, 127, pp.28-33. ⟨10.1016/j.mee.2014.03.016⟩. ⟨hal-01005617⟩

• Article dans une revue

Impacts of bioremediation schemes for the mitigation of a low-dose anthracene contamination on free-living marine benthic nematodes

Haithem Louati, O. Ben Said, A. Soltani, Cristiana Cravo-Laureau, Hugues Preud'Homme, Robert Duran, P. Aïssa, E. Mahmoudi, O. Pringault

A microcosm experiment was used to examine (1) the effects of different bioremediation schemes on degradation of anthracene and the structure of free-living marine nematodes in a lightly contaminated (4.5 μg g -1) sediment from Bizerte lagoon and (2) the responses of the nematode community upon an...

Ecotoxicology, 2014, 23 (2), pp.201-212. ⟨10.1007/s10646-013-1163-9⟩. ⟨hal-01560342⟩

• Communication dans un congrès

Integrated measurement platform for thermal conductivity measurements in thin-film crystalline silicon and silicon-germanium

Maciej Haras, Valeria Lacatena, Stéphane Monfray, J.F. Robillard, Thomas Skotnicki, Emmanuel Dubois

Thermoelectric conversion requires materials with low thermal conductivity k high electrical conductivity s and thermopower P. Performance of thermoelectric material is evaluated by the zT=P^2sT/k figure-of-merit. Bi2Te3 or Sb2Te3 are usually used near room temperature but they are harmful,...

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-00964577⟩

• Article dans une revue

F center in lithium fluoride revisited : comparison of solid-state physics and quantum-chemistry approaches

Ferenc Karsai, Paul Tiwald, Robert Laskowski, Fabien Tran, David Koller, Stefanie Gräfe, Joachim Burgdörfer, Ludger Wirtz, Peter Blaha

We revisit the theoretical description of the F color center in lithium fluoride employing advanced complementary ab initio techniques. We compare the results from periodic supercell calculations involving density-functional theory (DFT) and post-DFT techniques with those from the embedded-cluster...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2014, 89, 125429, 12 p. ⟨10.1103/PhysRevB.89.125429⟩. ⟨hal-00968483⟩

• Communication dans un congrès

Theoretical study of the basic mechanisms of DNA damage by therapeutic radiation beams

F. Manca, Stefano Giordano, Pier Luca Palla, Grégoire Perret, E. Lartigau, Dominique Collard, H. Fujita, Fabrizio Cleri

Cancer treatments by photon radiation beams in radiotherapy is currently grounded on a rather empirical understanding of the basic mechanisms of DNA damages. It is well assessed that radiation induces single-strand and double-strand breaks in DNA, being however the various mechanisms largely...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium N - Converging technology for nanobio-applications, 2014, Lille, France. ⟨hal-00966158⟩

• Communication dans un congrès

Functionalized gold nanoparticles with electropolymerizable π-conjugated systems for a neuro-inspired memristive nanoparticle organic synapse-transistor

Ali Yassin, Maiténa Oçafrain, David Guérin, Stéphane Lenfant, Dominique Vuillaume, Philippe Blanchard, Jean Roncali

Nanoparticle Organic Memory Field-Effect Transistors (NOMFET) are molecule-based devices that exhibit the main behavior of a biological spiking synapse. This behavior is obtained by virtue of the combination of two properties of the NOMFET: the transconductance gain of the transistor and the memory...

Materials Research Society Spring Meeting, MRS Spring 2014, Symposium C - Synthesis and Processing of Organic and Polymeric Materials for Semiconductor Applications, 2014, San Francisco, CA, United States. ⟨hal-00966207⟩

• Article dans une revue

Phononic engineering of silicon using "dots on the fly" e-beam lithography and plasma etching

Valeria Lacatena, Maciej Haras, J.F. Robillard, Stéphane Monfray, Thomas Skotnicki, Emmanuel Dubois

Nowadays, the interest in reducing the lattice thermal conductivity (kL), without affecting the electrical one (ke), represents one of the main objectives for researchers in thermoelectricity. In semiconductors, lattice vibrations contribute about 95% to thermal conductivity. Because phonons and...

Microelectronic Engineering, 2014, 121, pp.131-134. ⟨10.1016/j.mee.2014.04.034⟩. ⟨hal-00994777⟩

• Communication dans un congrès

Phosphorus-hyperdoped Si nanocrystals : a model for localized surface plasmon resonance

X. Pi, Christophe Delerue

It has been recently realized that semiconductor nanocrystals can be doped with point defects or impurities up to a very high level, sometimes above the bulk solubility limit. In parallel, hyperdoping has also emerged as a promising means to change the electrical and optical properties of Si. In...

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-00961394⟩

• Communication dans un congrès

[Invited] 3D substrates for improved performance of Li-ion microbatteries

Etienne Eustache, Olivier Crosnier, Pascal Tilmant, Laurence Morgenroth, Pascal Roussel, Nathalie Rolland, Christophe Lethien, Thierry Brousse

10th Japan-France Joint Seminar on Battery, 2014, Hakone, Japan. ⟨hal-01044691⟩