Publicaciones

• 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

Enhanced efficiency by the effect of strain on the structure of a solar cell

Abdelkader Aissat, Rachid Bestam, M. El Bey, Jean-Pierre Vilcot

This paper is expected at the study of Ga1-xInxP/GaAs based solar cell. The effects of indium concentration, lattice parameter mismatch and thickness of the SiO2 insulating layer on the characteristics and efficiency of the Ga1-xInxP/GaAs structure were investigated. We noticed that for higher...

International Conference on Technologies and Materials for Renewable Energy, Environment and Sustainability, TMREES14, 2014, Beirut, Lebanon. pp.817-823, ⟨10.1016/j.egypro.2014.06.100⟩. ⟨hal-01055040⟩

• 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

On the equivalence of thermodynamics ensembles for flexible polymer chains

F. Manca, Stefano Giordano, Pier Luca Palla, F. Cleri

Physica A: Statistical Mechanics and its Applications, 2014, 395, pp.154-170. ⟨10.1016/j.physa.2013.10.042⟩. ⟨hal-00913580⟩

• Article dans une revue

Sub-THz characterisation of multi-walled carbon nanotube thin films using vector network analyser

S. Puthukodan, E. Dadrasnia, V.K.T. Vinod, H.K. Nguendon, H. Lamela, Guillaume Ducournau, Jean-Francois Lampin, F. Garet, J.L. Coutaz, D.M. Lee, S. Baik

A vector network analyser is used to study the electrical properties of multi-walled carbon nanotube (MWCNT) thin films deposited on a fused quartz substrate in the sub-terahertz (THz) frequency ranges of 220-325 GHz (WR3.4) and 325-500 GHz (WR2.2). The experiment is performed in free space. The...

Electronics Letters, 2014, 50, pp.297-299. ⟨10.1049/el.2013.4136⟩. ⟨hal-00954474⟩

• Communication dans un congrès

Scale effects induced by imperfect interfaces in nanomaterials transport properties

Fabio Pavanello, F. Manca, Pier Luca Palla, Evelyne Lampin, Fabrizio Cleri, Stefano Giordano

One of the crucial factors governing the physical properties of nanomaterials is the complex behavior of the interfaces[1]. While at the macroscopic level their specific role is usually neglected, in nanostructured systems the properties of the contact between phases have to be carefully defined....

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium E - Defect-induced effects in nanomaterials, 2014, Lille, France. ⟨hal-00964099⟩

• Communication dans un congrès

Effects of deposition parameters on the composition of Cu(In,Ga)Se2 thin films deposited by magnetron pulse DC sputtering from a single quaternary target

Thomas Aviles, Jean-Pierre Vilcot

5th Photovoltaic Technical Conference 'Thin Film and Advanced Silicon Solutions', PVTC 2014, 2014, Aix-en-Provence, France. ⟨hal-00989529⟩

• Communication dans un congrès

Electromechanical and electro-optical properties of PEDOT based IPNs

Frederic Vidal, Cedric Plesse, Pierre-Henri Aubert, Eric Cattan, Caroline Soyer, Jean-Paul Dudon, Dominique Teyssie, Claude Chevrot, Giao T M Nguyen

SPIE Smart Structures/NDE 2014, Conference 9056 - Electroactive Polymer Actuators and Devices (EAPAD) XVI, 2014, San Diego, CA, United States. ⟨hal-00974544⟩

• Article dans une revue

Carbohydrate-lectin interaction on graphene-coated surface plasmon resonance (SPR) interfaces

Abra Penezic, Geetanjali Deokar, Dominique Vignaud, Emmanuelle Pichonat, Henri Happy, Palaniappan Subramanian, Blaženka Gasparovic, Rabah Boukherroub, Sabine Szunerits

The paper describes the detection of carbohydrate- lectin interaction on graphene-on-metal surface plasmon resonance (SPR) interfaces. Graphene-coated gold-based SPR interfaces were formed through the transfer of large-area graphene grown by chemical vapor deposition (CVD) on polycrystalline Cu...

Plasmonics, 2014, 9, pp.677-683. ⟨10.1007/s11468-014-9686-3⟩. ⟨hal-00994787⟩

• Communication dans un congrès

Optical and microstructural properties into nanoporous GaN films grown on sapphire by metal organic chemical vapor deposition

Bandar Alshehri, S.-M. Lee, J.-H. Kang, Karim Dogheche, S.-H. Gong, S.-W. Ryu, E. Dumont, Y.-H. Cho, El Hadj Dogheche

Gallium Nitride (GaN) thin films have been prepared on sapphire by metal organic chemical vapor deposition (MOCVD) technique and a chemical etching method using KOH is used to develop nanoporous structures [1]. We present comparative investigations of porous and nonporous GaN layers. While the...

European Materials Research Society Spring Meeting, E-MRS Spring 2014, Symposium K - Challenges for group III nitride semiconductors for solid state lighting and beyond, 2014, Lille, France. ⟨hal-00961412⟩