Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Gérard Neu"'
Autor:
B. Lo, Borge Vinter, M. Laügt, D.A. Buell, Christian Morhain, Jean-Michel Chauveau, Gérard Neu, Philippe Vennéguès, M. Tesseire-Doninelli
Publikováno v:
Applied Physics A. 88:65-69
Non polar ZnO and (Zn, Co)O layers were successfully grown on (1102) sapphire (R-plane sapphire). The growth process was shown to directly influence the surface morphology as well as the strain state in (1120) ZnO (A-plane ZnO). The dominant defect l
Autor:
Borge Vinter, Christian Morhain, Jean-Michel Chauveau, O. Tottereau, Gérard Neu, M. Teisseire-Doninelli, B. Lo, Christiane Deparis, Xiaodong Tang, M. Laügt, Philippe Vennéguès
Publikováno v:
Superlattices and Microstructures. 38:455-463
High-quality ZnMgO/ZnO quantum wells (QWs) showing no phase separation were grown on Al2O3(0001). Growth temperature was shown to play a major role in the stabilisation in the wurtzite phase of ZnMgO barrier layers as well as in their surface morphol
Autor:
J. Guion, Christiane Deparis, M. Teisseire-Doninelli, Christian Morhain, Stéphane Vézian, F. Raymond, Gérard Neu, P. Lorenzini
Publikováno v:
physica status solidi (b). 241:631-634
Photoluminescence (PL) and selective photoluminescence (SPL) experiments have been carried out to analyse the near band edge emission (NBE) spectra of unintentionally doped ZnO epilayers. It is shown that the different NBE transitions involve donor c
Autor:
Gérard Neu, Christian Morhain, J. P. Faurie, M. Teisseire, H. P. Gislason, Eric Tournié, D. Seghier
Publikováno v:
physica status solidi (b). 229:251-255
ZnSe epilayers doped with plasma-activated phosphorus have been investigated by means of optical and electrical measurements. It is found that P Se forms a shallow acceptor with binding energy of 85 meV which is identified in the optical emission spe
Autor:
M. Teisseire, J. Guion, P. Lorenzini, F. Vigué, Jean-Pierre Faurie, Stéphane Vézian, F. Raymond, Gérard Neu, Christian Morhain
Publikováno v:
physica status solidi (b). 229:881-885
Photoluminescence (PL) and selective photoluminescence (SPL) experiments have been carried out to analyse the neutral donor bound exciton spectra of nominally undoped wurtzite ZnO epilayers and to study the electronic levels introduced by arsenic dop
Publikováno v:
physica status solidi (b). 228:501-504
Neutral donor bound excitons (I 2 ) and donor related electronic Raman scattering (ERS) in wurtzite GaN epilayers deposited onto Si, 6H-SiC, Al 2 O 3 and GaN substrates are studied at low temperature by high-resolution selective photoluminescence spe
Autor:
Bernard Beaumont, Robert Triboulet, Nicolas Grandjean, Philippe Lemasson, Gérard Neu, S. Porowski, Hacene Lahreche, M. Teisseire, Izabella Grzegory, Fabrice Semond
Publikováno v:
Physica B: Condensed Matter. :39-53
We present an overview of recent selective photoluminescence (PL) experiments on shallow levels in ZnSe and GaN. Through two electron transitions (TET) and electronic Raman scattering (ERS) investigations on solid phase recrystallized bulk ZnSe doped
Publikováno v:
Physica B: Condensed Matter. :291-298
We have classified all the possible types of phonon-assisted optical processes involving bound or extended initial, final, and virtual (intermediate) electron states and formulated, for the first time, in terms of site symmetry, the selection rules f
Publikováno v:
Physical Review B. 62:12868-12874
We report on detailed optical-spectroscopy investigations of nitrogen-doped ZnSe epitaxial layers of various doping levels and N contents which have been exposed ex situ to a hydrogen/deuterium plasma. The influence of this treatment is studied throu
Autor:
Izabella Grzegory, Benjamin Damilano, S. Porowski, Martin Albrecht, Pierre Lefebvre, Jean Massies, M. Teissere, Bernard Gil, Nicolas Grandjean, Mathieu Gallart, Gérard Neu
Publikováno v:
Scopus-Elsevier
Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2000, 88 (1), pp.183. ⟨10.1063/1.373640⟩
Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2000, 88 (1), pp.183. ⟨10.1063/1.373640⟩
GaN epilayers and GaN/AlGaN quantum wells (QWs) were grown by molecular beam epitaxy on GaN(0001) single crystal substrates. Transmission electron microscopy (TEM) was used to assess the crystal quality of the homoepitaxial layers. A dislocation dens