Publicaciones

• COMM

Optimization of carrier-multiplication for more efficient solar cells : the case of α-Sn quantum dots

Christophe Delerue, Guy Allan

We present calculations of impact ionization rates, carrier multiplication yields, and solar-power conversion efficiencies in solar cells based on quantum dots (QDs) of a semimetal, α-Sn. Using these results and previous ones on PbSe and PbS QDs, we discuss a strategy to select QDs with the highest...

Materials Research Society Fall Meeting, MRS Fall 2011, Symposium I : Fundamental processes of solar harvesting in excitonic solar cells, Nov 2011, Boston, MA, United States. ⟨10.1021/nn202180u⟩. ⟨hal-00807718⟩

• THESE

Mise en oeuvre d'un système de communication OFDM-haut débit dédié aux trains à grandes vitesses, Implementation of a high data rate OFDM communication system, dedicated for high-speed trains

Boudali Ouarzazi

LEs systèmes de communication sans fil de la 4ème génération (LTE, IEEE.802.16m et IEEE.802.20) se développent dans le monde ferroviaire afin d'assurer des services d'information, de maintenance, des services de réservation ou d'accès à Internet. Dans un contexte de forte mobilité (..., THe 4th generation of wireless communication systems (LTE, IEEE.802.16m and IEEE.802.20) is developed in the rail to provide information services, maintenance, reservation services and Internet access. In a context of high mobility (i.e. the TGV), the consequences of the Doppler Effect on the...

Micro et nanotechnologies/Microélectronique. Université de Valenciennes et du Hainaut-Cambrésis, 2011. Français. ⟨NNT : 2011VALE0028⟩. ⟨tel-03416058⟩

• THESE

Conception, fabrication et caractérisation d'un modulateur optique à commande plasmonique sur nitrure de gallium à une longueur d'onde de 1,55 micron, Design, realization and characterization of an optical modulator with a plasmonic command based on gallium nitride at a wavelength of 1.55 micron

Arnaud Stolz

Les futurs modulateurs optiques doivent satisfaire à des exigences auxquelles les modulateurs électro-optiques actuels ne peuvent plus répondre (tension de commande et dimensionnement faible, fonctionnement dans la gamme 0-40GHz à faibles pertes). Il devient alors nécessaire d'envisager de..., Future optical modulators have to satisfy requirements that current electro-optical modulators fail to do, such as very low command voltage, small size and ability to work in the 0-40GHz range with low losses. It is also necessary to find new ways to modulate light at a faster speed but with low...

Optique / photonique. Université de Valenciennes et du Hainaut-Cambresis, 2011. Français. ⟨NNT : ⟩. ⟨tel-00677475v2⟩

• ART

EUROPEAN SOCIETY FOR THE HISTORY OF SCIENCE [Editorial]

Raffaele Pisano

Centaurus, 2011, 53 (4), pp.346-347. ⟨10.1111/j.1600-0498.2011.00250.x⟩. ⟨hal-04509578⟩

• THESE

Ultrasonic diagnostics of mechanical and structural degradation of concrete, Diagnostic ultrasonore de la dégradation mécanique et structurale du béton

Pawel Safinowski

The present work concerns the development of tools for non-destructive and non-contact diagnostic of state (degradation) of construction materials, mainly concrete. Attention is focused on two complementary techniques using the propagation of ultrasonic waves, i.e. the study of surface waves..., Le travail présenté dans ce mémoire concerne le développement d'outils pour le diagnostic non-destructif et sans contact de l’état (dégradation) des matériaux de construction, principalement du béton. La thèse est focalisée sur deux techniques d’évaluation utilisant la propagation des ondes...

Other. Ecole Centrale de Lille; Kazimierz Wielki University. Institute of Mechanics and Applied Computer Science, Bydgoszcz (Pologne), 2011. English. ⟨NNT : 2011ECLI0023⟩. ⟨tel-00664281⟩

• COMM

UTC-PD Emitters and FET Based Receivers for Sub-THz Wireless Communication System

Guillaume Ducournau, Stéphane Blin, Dominique Coquillat, Alexandre Beck, Tahsin Akalin, Emilien Peytavit, Franz Schuster, Wojciech Knap, Jeremie Torres, Frederic Teppe, Jean-Francois Lampin, Philippe Nouvel, Annick Pénarier, Luca Varani

UTC-PD Emitters and FET Based Receivers for Sub-THz Wireless Communication System

International TeraNano & GDRI Workshop Extended Abstract, 28P-05, Nov 2011, Tokyo, Japan. pp.28I-12. ⟨hal-00814911⟩

• COMM

Experiments on the mode selection in Faraday instability

William R. Batson, Farzam Zoueshtiagh, Raviprasad Narayanan

The resonance of a fluid interface with an oscillating acceleration field is studied for liquid-liquid systems in small aspect ratio cylindrical and rectangular containers. The resonant phenomenon, known as Faraday waves, is more typically studied in large aspect ratio systems at high frequencies...

64th Annual Meeting of the APS Division of Fluid Dynamics, DFD 2011, Nov 2011, Baltimore, MD, United States. ⟨hal-00807170⟩

• ART

Impurity impact ionization avalanche in p-type diamond

Vincent Mortet, A. Soltani

Electrical conductivity of a highly boron doped chemical vapor deposited diamond thin film has been studied at different temperatures under high electric field conditions. Current-voltage characteristics have been measured using pulsed technique to reduce thermal effects. Experimental results...

Applied Physics Letters, 2011, 99, pp.202105. ⟨10.1063/1.3662403⟩. ⟨hal-00737919⟩

• ART

Charge carrier identification in tunneling spectroscopy of core-shell nanocrystals

T.H. Nguyen, Justin Habinshuti, Y. Justo, R. Gomes, G. Mahieu, S. Godey, J.P. Nys, S. Carrillo, Z. Hens, O. Robbe, S. Turrell, B. Grandidier

Semiconductor PbSe/CdSe core-shell nanocrystals (NCs) in a double barrier tunnel junction have been investigated by means of scanning tunneling spectroscopy at low temperature. From the analysis of the differential conductance peak position as a function of the potential distribution in both...

Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 84, pp.195133-1 - 195133-8. ⟨10.1103/PhysRevB.84.195133⟩. ⟨hal-00653271⟩

• COMM

Histories, Epistemologies and Teachings

Raffaele Pisano

Information & communication Technology International Conference in Natural Science Education, Faculty de Education-Natural Science Education Research Centre, University of Šiauliai, 9-13 November, Nov 2011, Siauliai, Lithuania. ⟨hal-04518852⟩