Publications

Affichage de 5341 à 5350 sur 16232


  • Communication dans un congrès

Characterization and Electrical Modeling Including Trapping Effects of AIN/GaN HEMT 4×50μm on Silicon Substrate

Mohamed Bouslama, Ahmad Al Hajjar, Raphaël Sommet, Jean-Christophe Nallatamby, F Medjdoub

This paper reports the full characterization and modeling of novel AlN/GaN HEMTs on silicon using a short gate length. This device has been optimized for high frequency analog circuits applications. The presented model includes DC and small-signal modeling steps taking into account the trapping…

13th European Microwave Integrated Circuits Conference (EuMIC 2018), Sep 2018, Madrid, Spain. pp.333-336, ⟨10.23919/EuMIC.2018.8539941⟩. ⟨hal-02356757⟩

  • Chapitre d'ouvrage

Chapter 4 - One-dimensional phononic crystals

El Houssaine El Boudouti, Abdellatif Akjouj, L. Dobrzynski, Bahram Djafari-Rouhani, Yan Pennec, Housni Al-Wahsh, Gaëtan Lévêque

In this chapter we study the band gap structures as well as the effect of inhomogeneities within the perfect one-dimensional (1D) phononic crystal (PnC) such as a free surface, a PnC/substrate interface, and a defect layer embedded in these systems. Such inhomogeneities are usually present in…

Phononics: interface transmission tutorial book series, Elsevier, pp.139-270, 2018, ISBN 978-0-12-809948-3 ; e-ISBN 978-0-12-809931-5. ⟨10.1016/B978-0-12-809948-3.00004-1⟩. ⟨hal-03356297⟩

  • Communication dans un congrès

Improvement the Efficiency of Solar Cell Based on GaAsNSb/Si

Abdelkader Aissat, Rachid Bestam, Said Nacer, Wafa Bellil, Jean-Pierre Vilcot

2018 6th International Renewable and Sustainable Energy Conference (IRSEC), Dec 2018, Rabat, Morocco. pp.1-4, ⟨10.1109/IRSEC.2018.8702947⟩. ⟨hal-02409607⟩

  • Article dans une revue

Novel three-dimensional carbon nanotube networks as high performance thermal interface materials

Qinyu Kong, Laurence Bodelot, Bérengère Lebental, Yu Dian Lim, Li Lynn Shiau, Boris Gusarov, Chong Wei Tan, Kun Liang, Congxiang Lu, Chuan Seng Tan, Philippe Coquet, Beng Kang Tay

Vertically aligned carbon nanotube (VACNT) arrays are considered as promising thermal interface materials (TIMs) due to their superior out-of-plane thermal conductivities. However the air gaps between adjacent CNTs within the CNT array hinder the in-plane heat transfer, thus significantly degrading…

Carbon, 2018, 132, pp.359-369. ⟨10.1016/j.carbon.2018.02.052⟩. ⟨hal-01823328⟩

  • Article dans une revue

High-resolution THz gain measurements in optically pumped ammonia

Martin Mičica, Sophie Eliet, Mathias Vanwolleghem, Roman Motiyenko, Anastasia Pienkina, Laurent Margulès, Kamil Postava, Jaromír Pištora, Jean-Francois Lampin

This study is aimed at the evaluation of THz gain properties in an optically pumped NH$_3$ gas. NH$_3$ molecules undergo rotational-vibrational excitation by mid-infrared (MIR) optical pumping provided by a MIR quantum cascade laser (QCL) which enables precise tuning to the NH3 infrared transition…

Optics Express, 2018, 26 (16), pp.21242. ⟨10.1364/OE.26.021242⟩. ⟨hal-02407947⟩

  • Article dans une revue

Electron and Hole g-Factors and Spin Dynamics of Negatively Charged Excitons in CdSe/CdS Colloidal Nanoplatelets with Thick Shells

Elena V. Shornikova, Louis Biadala, Dmitri R. Yakovlev, Donghai Feng, Victor F. Sapega, Nathan Flipo, Aleksandr A. Golovatenko, Marina A. Semina, Anna V. Rodina, Anatolie Mitioglu, Mariana V. Ballottin, Peter C. M. Christianen, Yuri G. Kusrayev, Michel Nasilowski, Benoit Dubertret, Manfred Bayer

We address spin properties and spin dynamics of carriers and charged excitons in CdSe/CdS colloidal nanoplatelets with thick shells. Magneto-optical studies are performed by time-resolved and polarization-resolved photoluminescence, spin-flip Raman scattering and picosecond pump-probe Faraday…

Nano Letters, 2018, 18 (1), pp.373-380. ⟨10.1021/acs.nanolett.7b04203⟩. ⟨hal-03185123⟩