Publications

• Article dans une revue

Negative effective mass density of acoustic metamaterial plate decorated with low frequency resonant pillars

Mourad Oudich, Bahram Djafari-Rouhani, Yan Pennec, M. Badreddine Assouar, Bernard Bonello

We investigate the elastic wave dispersion by a phononic metamaterial plate containing low frequency resonator stubs arranged periodically over the plate. We show that this system not only provides stop bands for wavelengths much larger than the periodicity but also displays negative behavior of…

Journal of Applied Physics, 2014, 116 (18), ⟨10.1063/1.4901462⟩. ⟨hal-01233805⟩

• Article dans une revue

Cross-talk artefacts in Kelvin probe force microscopy imaging : a comprehensive study

Sophie Barbet, Michka Popoff, Heinrich Diesinger, D. Deresmes, Didier Theron, Thierry Melin

We provide in this article a comprehensive study of the role of ac cross-talk effects in Kelvin Probe Force Microscopy (KPFM), and their consequences onto KPFM imaging. The dependence of KPFM signals upon internal parameters such as the cantilever excitation frequency and the projection angle of…

Journal of Applied Physics, 2014, 115 (14), pp.144313. ⟨10.1063/1.4870710⟩. ⟨hal-00981142⟩

• Article dans une revue

Dielectric relaxation analysis of Pb(Zr_0.54,Ti_0.46)O₃ thin films: electric field dependence

Freddy Ponchel, N. Sama, Denis Remiens, T. Lasri

350 nm-thick Perovskite PbZr0.54Ti0.46O3 (PZT) thin films were deposited on Al2O3 substrates by sputtering with and without an additional 10-nm-thick TiOx buffer layer. X-ray diffraction patterns showed that in presence of TiOx buffer layer, PZT film was highly oriented along the (111) direction…

• Communication dans un congrès

Redox-coated nanoelectrode array : a coupled electrochemical and molecular electronics study

Jorge Trasobares, Ragavendran Sivakumarasamy, Claire Whal, Alexis Vlandas, Thierry Martin, J.P. Nys, Dominique Vuillaume, Didier Theron, Nicolas Clément

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium M - Molecular materials - Towards quantum properties (MOLMAT-Q), 2014, Lille, France. ⟨hal-00957799⟩

• Communication dans un congrès

Monitoring conductance switching by light in azobenzene derivative-gold nano-particle self-assembled networks

Yannick Viero, Stéphane Lenfant, David Guérin, Dominique Vuillaume

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium M - Molecular materials - Towards quantum properties (MOLMAT-Q), 2014, Lille, France. ⟨hal-00957796⟩

• Communication dans un congrès

Atomic switch : synaptic functionalities and integration strategies

Selina La Barbera, David Guérin, Dominique Vuillaume, F. Alibart

In recent years, research in the field of neuro-inspired computing has generated a lot of interest and seems to be a promising candidate to complement and to provide enhanced performances and new functionalities to the existing CMOS/Von Neumann processor, such as image recognition or datas…

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium S - Memristormaterials, mechanisms and devices for unconventional computing, 2014, Lille, France. ⟨hal-00957801⟩

• Article dans une revue

Optimization of the optical properties of nanostructured silicon surfaces for solar cell applications

Di Zhou, Yan Pennec, Bahram Djafari-Rouhani, Odile Cristini-Robbe, Tao Xu, Yannick Lambert, Yves Deblock, Marc Faucher, Didier Stiévenard

Surface nanostructuration is an important challenge for the optimization of light trapping in solar cell. We present simulations on both the optical properties and the efficiency of micro pillars--MPs--or nanocones--NCs--silicon based solar cells together with measurements on their associated…

Journal of Applied Physics, 2014, 115, pp.134304. ⟨10.1063/1.4870236⟩. ⟨hal-00974457⟩

• Article dans une revue

The effect of deposition power on the micro-structure and dielectric response of Pb0.4Sr0.6TiO3 thin films

K. Li, Denis Remiens, G. Du, T. Li, X.L. Dong, G.S. Wang

Ceramics International, 2014, 40, pp.149-153. ⟨10.1016/j.ceramint.2013.05.115⟩. ⟨hal-00903763⟩

• Communication dans un congrès

Microscopie champ proche aux fréquences térahertz

Gabriel Moreno

Ce travail de thèse porte sur l'étude et sur l'adaptation de la microscopie champ proche (s-SNOM) dans les bandes de fréquences moyen-infrarouge (3-15 μm) et terahertz (100 μm - 1 mm). Nous présentons les principales caractéristiques de cette technique de microscopie. Pour cela, une sonde…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 4 p. ⟨hal-01020420⟩

• Communication dans un congrès

Méthodes expérimentales et théoriques dans la biomécanique de dégradation de l'ADN sous rayonnement pour le traitement optimisé des tumeurs

Gregoire Perret, Fabio Manca, Stefano Giordano, Pier Luca Palla, Thomas Lacornerie, Eric Lartigau, Momoko Kumemura, Hiroyuki Fujita, Fabrizio Cleri, Dominique Collard

Nous rapportons ici les premières mesures biomécaniques (et en temps réel) de dégradation d'ADN en solution, exposé à un faisceau de radiothérapie. Les instruments utilisés (le Silicon Nanotweezers et la cavité microfluidique entre autres) supportent l'environnement hostile de rayonnement…

17èmes Journées Nationales du Réseau Doctoral en Micro-Nanoélectronique, JNRDM 2014, 2014, Villeneuve d'Ascq, France. 5 p. ⟨hal-01020300⟩