Publications

• Communication dans un congrès

Electro-optic and converse piezoelectric coefficients of epitaxial thin films : GaN grown on Si, and (Sr,Ba)Nb2O6 (SBN) grown on Pt coated MgO (poster)

Mireille Cuniot-Ponsard, Irma Saraswati, Suk-Min Ko, Mathieu Halbwax, Yong-Hoon Cho, El Hadj Dogheche

We report the first measurement of the (r13, r33) Pockels electro-optic coefficients in a SBN thin film and in a GaN thin film grown on silicon. The converse-piezoelectric and electro-absorptive coefficients are simultaneously determined.

Conference on Lasers and Electro-Optics, CLEO 2014, Laser Science to Photonic Applications, 2014, San Jose, CA, United States. ⟨hal-00975792⟩

• 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

Electrical and Chemical studies on Al2O3 passivation activation process

M. Pawlik, J-P. Vilcot, M. Halbwax, D. Aureau, A. Etcheberry, A. Slaoui, T. Schutz-Kuchly, R. Cabal

Al2O3 deposited using Atomic layer Deposition (ALD) technique is known as an excellent material for p-type silicon surface passivation. However a post-deposition annealing step is needed to make the passivation effective. Thanks to coupled electrical measurements (capacitance and photoconductance)…

Energy Procedia, 2014, 60 (C), pp.85-89. ⟨10.1016/j.egypro.2014.12.347⟩. ⟨hal-05416094⟩

• Article dans une revue

Temperature dependence of the conduction mechanisms through a Pb(Zr,Ti)O3 thin film

C. Jegou, L. Michalas, T. Maroutian, G. Agnus, M. Koutsoureli, G. Papaioannou, L. Largeau, David Troadec, A. Leuliet, P. Aubert, P. Lecoeur

The conduction mechanisms through a lead zirconate titanate (PZT) thin film grown by pulsed laser deposition with a La0.67Sr0.33MnO3 (LSMO) buffer layer on epitaxial Pt (111) were assessed in the 230-330 K temperature range. X-Ray diffraction and transmission electron microscopy evidenced a…

Thin Solid Films, 2014, 563, pp.32-35. ⟨10.1016/j.tsf.2013.12.043⟩. ⟨hal-01009981⟩

• Communication dans un congrès

Matériaux lithiés obtenus par dépôt physique et chimique en phase vapeur pour microbatterie Li-ion

Manon Letiche, Etienne Eustache, Pascal Roussel, Christophe Lethien

Journées Nord-Ouest Européennes des Jeunes Chercheurs, JNOEJC 2014, 2014, Villeneuve d'Ascq, France. ⟨hal-01009970⟩

• Article dans une revue

From 'petal effect' to 'lotus effect' on the highly flexible Silastic S elastomer microstructured using a fluorine based reactive ion etching process

Christophe Frankiewicz, Farzam Zoueshtiagh, Abdelkrim Talbi, Jeremy Streque, Philippe Pernod, Alain Merlen

A fluorine-based reactive ion etching (RIE) process has been applied on a new family of silicone elastomers named 'Silastic S' for the first time. Excellent mechanical properties are the principal advantage of this elastomer. The main objective of this study was (i) to develop a new…

Journal of Micromechanics and Microengineering, 2014, 24 (11), ⟨10.1088/0960-1317/24/11/115008⟩. ⟨hal-03277849⟩

• Article dans une revue

Influence of processing gases on the properties of cold atmospheric plasma SiOxCy coatings

H. Hamze, Maude Jimenez, D. Deresmes, Arnaud Beaurain, Nicolas Nuns, Michel Traisnel

Thin layers of SiOxCy (y = 4−x and 3 ≤ x ≤ 4) were applied using a cold atmospheric plasma torch on glass substrates. The aim was to investigate using Atomic Force Microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (Tof-Sims) the influence of…

Applied Surface Science, 2014, Applied Surface Science, 315 (1), pp.531-537. ⟨10.1016/j.apsusc.2013.12.108⟩. ⟨hal-03055748⟩

• Article dans une revue

Optical waveguiding properties into porous gallium nitride structures investigated by prism coupling technique

Bandar Alshehri, Seung-Min Lee, Jin-Ho Kang, Su-Hyun Gong, Sang-Wan Ryu, Yong-Hoon Cho, El Hadj Dogheche

In order to modulate the refractive index and the birefringence of Gallium Nitride (GaN), we have developed a chemical etching method to perform porous structures. The aim of this research is to demonstrate that optical properties of GaN can be tuned by controlling the pores density. GaN films are…

Applied Physics Letters, 2014, 105, 051906, 4 p. ⟨10.1063/1.4892528⟩. ⟨hal-01056953⟩

• Article dans une revue

Young's modulus extraction of epitaxial heterostructure AlGaN/GaN for MEMS application

Achraf Ben Amar, Marc Faucher, Virginie Brandli, Yvon Cordier, Didier Theron

This paper presents a Young's modulus extraction method for thin film group III-nitrides materials such as GaN, AlN, and its ternary AlGaN. The AlGaN/GaN heterostructures are grown by molecular beam epitaxy on Si (111) substrate and designed for MEMS applications. Various cantilevers with a…

Physica Status Solidi A (applications and materials science), 2014, 211, pp.1655-1659. ⟨10.1002/pssa.201330339⟩. ⟨hal-01044844⟩

• Communication dans un congrès

Preparation and study of 2-D semiconductors with Dirac type bands due to the honeycomb nanogeometry

Efterpi Kalesaki, Mark Pieter Boneschanscher, Jaco J. Geuchies, Christophe Delerue, Cristiane Morais Smith, Wiel H. Evers, Guy Allan, Thomas Altantzis, Sara Bals, Daniel Vanmaekelbergh

The interest in 2-dimensional systems with a honeycomb lattice and related Dirac-type electronic bands has exceeded the prototype graphene. We show that atomically coherent honeycomb superlattices of rocksalt (PbSe, PbTe) and zincblende (CdSe, CdTe) semiconductors can be obtained by nanocrystal…

SPIE Photonics West, OPTO 2014, Conference 8981 - Physics, Simulation, and Photonic Engineering of Photovoltaic Devices III, 2014, San Francisco, CA, United States. ⟨10.1117/12.2042882⟩. ⟨hal-00964400⟩