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Affichage de 7941 à 7950 sur 16231

Communication dans un congrès

Doped semiconductor nanocrystal junctions studied by Kelvin probe and non-contact atomic force microscopy

Lukasz Borowik, Thuat Nguyen-Tran, D. Deresmes, Heinrich Diesinger, Pere Roca I Cabarrocas, Thierry Melin

Semiconductor junctions are the basis of electronic and photovoltaic devices. Here, we investigate junctions formed from highly doped (ND~10^20-10^21 cm-3) hydrogen-passivated silicon nanocrystals (NCs) in the 2-50nm size range, using non-contact atomic force microscopy coupled to Kelvin probe…

Materials Research Society Fall Meeting, MRS Fall 2013, Symposium LL : Advances in Scanning Probe Microscopy, 2013, Boston, MA, United States. ⟨hal-00944018⟩

Communication dans un congrès

Tunable locally resonant band gaps for surface acoustic waves and Lamb waves in a phononic crystal

N. Gasmi, Abdelkrim Talbi, Y. Du, M. Goueygou, Olivier Bou Matar

IEEE International Ultrasonics Symposium, IUS 2013, 2013, Prague, Czech Republic. ⟨hal-00944043⟩

Communication dans un congrès

A 285 GHz sub-harmonic injection locked oscillator in 65nm CMOS technology

J. Moron Guerra, A. Siligaris, Jean-Francois Lampin, Francois Danneville, P. Vincent

A 285 GHz Sub Harmonic Injection Locked Oscillator (SHILO) is presented using a standard 65nm CMOS process. The architecture of this oscillator is based on the differential LC tank with push-push but adapted to obtain a third harmonic oscillation. The output power is -19 dBm at 285 GHz for a dc…

61st IEEE MTT-S International Microwave Symposium, IMS 2013, 2013, Seattle, WA, United States. paper WE1F-4, 3 p., ⟨10.1109/MWSYM.2013.6697345⟩. ⟨hal-00944033⟩

Communication dans un congrès

Theoretical and experimental study of multilayer piezo-magnetic structure based surface acoustic wave devices for high sensitivity magnetic sensor

Huan Zhou, Abdelkrim Talbi, Nicolas Tiercelin, Olivier Bou Matar

This study addresses the experimental and theoretical investigations of piezomagnetic acoustic waves propagating along the surface of a piezoelectric substrate on which a magnetostrictive thin film is deposited. The main objective of this work is to design high sensitivity surface acoustic wave…

IEEE International Ultrasonics Symposium, IUS 2013, Jul 2013, Prague, Czech Republic. paper IUS3-C-2, 212-215, ⟨10.1109/ULTSYM.2013.0055⟩. ⟨hal-00944036⟩

Communication dans un congrès

Amplificateur de puissance GaN à haut rendement avec polarisation dynamique

F. Gamand, M.D. Li, Christophe Gaquière

18èmes Journées Nationales Microondes, JNM 2013, 2013, Paris, France. papier J1-DA2-2, 4 p. ⟨hal-00878391⟩

Article dans une revue

Nanometal plasmon polaritons

Abdellatif Akjouj, Gaëtan Lévêque, Sabine Szunerits, Yan Pennec, Bahram Djafari-Rouhani, Rabah Boukherroub, L. Dobrzynski

A nanometal is a nanometric metallic structure. A plasmon is a collective excitation of an electron gas. A plasmon polariton is a plasmon coupled to an electromagnetic wave. Whereas plasmons in bulk metal do not couple to light fields, a thin metal film can sustain surface polaritons when excited…

Surface Science Reports, 2013, 68, pp.1-67. ⟨10.1016/j.surfrep.2012.10.001⟩. ⟨hal-00796412⟩

Communication dans un congrès

Effect of manganese concentration in the Cd1-xMnxTe/CdTe tandem structure on photovoltaic energy conversion

Abdelkader Aissat, M. El Bey, M. Fathi, Jean-Pierre Vilcot

The photovoltaic electricity is obtained by direct conversion of sunlight into electricity by solar cells. The objective of this work is the study and simulation of a Tandem photovoltaic structure based on Cd1-xMnxTe as top material cell. This paper describes the optimization of energy efficiency…

TerraGreen 13 International Conference 2013 - Advancements in Renewable Energy and Clean Environment, 2013, Beirut, Lebanon. pp.401-407, ⟨10.1016/j.egypro.2013.07.046⟩. ⟨hal-00877761⟩