Publications

• Communication dans un congrès

Strain relaxation and thermal effects on the drain conductance in AlGaN/GaN HEMT

A. Telia, A. Bellakhdar, L. Semra, A. Soltani

In this work the effects of technological and electrical parameters of Al m Ga 1-m N/GaN High Electron Mobility Transistors (HEMT) on the output conductance "gd" was studied in the first part. In the second part, the effect on gd of thermal and self heating in the device was analyzed.…

2nd Saudi International Electronics, Communications and Photonics Conference, SIECPC 2013, 2013, Riyadh, Saudi Arabia. 6 p., ⟨10.1109/SIECPC.2013.6550780⟩. ⟨hal-00877787⟩

• Article dans une revue

Acoustic techniques for concrete evaluation: improvements, comparisons and consistency

Vincent Garnier, Bogdan Piwakowski, Odile Abraham, Géraldine Villain, Cédric Payan, Jean François Chaix

In civil engineering, the testing of structures allows a large number of chemical, mechanical and micro–macro structural parameters to be determined. Within the scope of ultrasonic Non-Destructive Testing (NDT), which is often used to evaluate concrete, many different techniques can be employed to…

Construction and Building Materials, 2013, 43, pp.598-613. ⟨10.1016/j.conbuildmat.2013.01.035⟩. ⟨hal-00813152⟩

• Article dans une revue

Temperature and damping effects on the frequency dependence of electrostatic force microscopy force gradients

R. Arinero, J. Trasobares, Pascal Girard, M. Ramonda, N. Clément

In this paper we demonstrate that depending on the surrounding ambient, which may be manifested by different damping conditions, a "bump" in frequency response of Electric Force Microscope (EFM) cantilevers may be observed, either in electrical amplitude or phase signals of AC gradients.…

Journal of Applied Physics, 2013, 114 (21), pp.214315. ⟨10.1063/1.4843835⟩. ⟨hal-00916277⟩

• Communication dans un congrès

Design and simulation of Cd1-xZnxTe thin films epitaxied on CdTe substrate for photovoltaic devices applications

A. Aissat, M. Fathi, Jean-Pierre Vilcot

This work concerns the study and the simulation of a structure containing II-VI semiconductor for photovoltaic application. We studied the influence of the zinc concentration on the various parameters of the alloy Cd1-xZnxTe epitaxied on a CdTe substrate. Indeed, the insertion of zinc increases the…

TerraGreen 13 International Conference 2013 - Advancements in Renewable Energy and Clean Environment, 2013, Beirut, Lebanon. pp.86-93, ⟨10.1016/j.egypro.2013.07.011⟩. ⟨hal-00877760⟩

• Article dans une revue

How imperfect interfaces affect the nonlinear transport properties in composite nanomaterials

F. Pavanello, S. Giordano

Nanomaterials composed of a population of particles dispersed in a matrix represent the building block for the next generation of several technologies: energy storage and conversion, thermal management, electronics, and photovoltaics. When interfaces between particles and matrix are imperfect, the…

Journal of Applied Physics, 2013, 113 (15), pp.154310. ⟨10.1063/1.4801889⟩. ⟨hal-00818171⟩

• Article dans une revue

Open problems in mathematical modelling and physical experiments: exploring exponential function

Raffaele Pisano, Paolo Bussotti

Generally speaking the exponential function has large applications and it is used by many non physicians and non mathematicians, too. Nevertheless some crucial and practical problems happen for its mathematical understanding. Mostly, this part of mathematical cognitive programmes introduce it from…

Problems of Education in the 21st Century, 2012, 50 (1), pp.56-69. ⟨10.33225/pec/12.50.56⟩. ⟨hal-04507892⟩

• Communication dans un congrès

[Invité] Multi-excitons dans les nanostructures de semiconducteurs

Christophe Delerue, Guy Allan

Deuxième édition des Journées Nationales du Photovoltaïque, JNPV 2012, Dec 2012, Chantilly, France. ⟨hal-00797752⟩

• Article dans une revue

An accurate determination of the surface energy of solid selenium

G. Guisbiers, S. Arscott, R. Snyders

Applied Physics Letters, 2012, 101 (23), pp.231606. ⟨10.1063/1.4769358⟩. ⟨hal-02345720⟩

• Article dans une revue

On the origin of basal stacking faults in nonpolar wurtzite films epitaxially grown on sapphire substrates

Philippe Vennéguès, Jean Michel Chauveau, Z. Bougrioua, Tiankai Zhu, Denis Martin, Nicolas Grandjean

The microstructure of nonpolar heteroepitaxial wurtzite films (GaN and ZnO-based) is dominated by the presence of planar basal stacking faults (BSFs). In this paper, transmission electron microscopy studies of both GaN and ZnO nonpolar films oriented either (11–20) or (1–100) and grown on sapphire…

Journal of Applied Physics, 2012, 112 (11), pp.113518. ⟨10.1063/1.4768686⟩. ⟨hal-02906733⟩

• Article dans une revue

Theory and Monte Carlo simulations for the stretching of flexible and semiflexible single polymer chains under external fields

F. Manca, S. Giordano, Pier Luca Palla, F. Cleri, L. Colombo

Recent developments of microscopic mechanical experiments allow the manipulation of individual polymer molecules in two main ways: uniform stretching by external forces and non-uniform stretching by external fields. Many results can be thereby obtained for specific kinds of polymers and specific…

The Journal of Chemical Physics, 2012, 137, pp.244907-1-12. ⟨10.1063/1.4772656⟩. ⟨hal-00787361⟩