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Controlling 2d/3d Growth of Gan by Molecular Beam Epitaxy: From Superlattices to Quantum Dots

Published online by Cambridge University Press:  10 February 2011

B. Daudin ,
G. Feuillet ,
F. Widmann ,
Y. Samson ,
J. L. Rouviere ,
N Pelekanos  and
G. Fishman
B. Daudin
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
G. Feuillet
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
F. Widmann
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
Y. Samson
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
J. L. Rouviere
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
N Pelekanos
Affiliation:
Département de Recherche Fondamentale sur la Matiére Condensée, CEA-Grenoble, SP2M/PSC, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France, daudin@drfmc.ceng.cea.fr
G. Fishman
Affiliation:
Laboratoire de Spectrométrie Physique, UMR C5588, Université J. Fourier Grenoble 1 CNRS, BP 87, 38402 St Martin d'Hères Cedex, France
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Abstract

By controlling the Stranski-Krastanov growth mode of strained GaN deposited by molecular beam epitaxy on AlN, it is shown that islands with nanometric dimensions can be elaborated. The luminescence energy of the wetting layer is 4.6 eV, determined by cathodoluminescence experiments. The luminescence of dots with a mean size of 14 nm in diameter and 2nm in height is 3.8 eV and remains constant in intensity with increasing temperature, as an evidence of 0-dimension confinement effect. Theoretical analysis of the wetting layer luminescence energy is carried out, taking into account the non parabolicity in the conduction band.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 482 , 1997 , 205
Copyright
Copyright © Materials Research Society 1998

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References

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