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Theses

Qualification des Nitrures de Gallium pour les
Dispositifs Optoélectroniques : Application aux
Diodes Electroluminescentes bleues

Abstract : In this work, we described at first the growth of GaN with treatment Si/N elaborated in high temperature and in atmospheric pressure by Epitaxie in Phase Vapor by pyrolysis of OrganoMétalliques ( MOCVD). This phase of treatment Si/ N, just after the stage of nitruration of the sapphire substrat ( 0001 ), led(inferred) the passage of a mode of growth. This phase of treatment Si/ N, just after the stage of nitruration of the sapphire substrat ( 0001 ), led(inferred) the passage of a mode of growth 3D - 2D as the layer of GaN thickened.
The study of various levels of growth shows an improvement of the morphological, electric, structural and optical quality when the thickness of the layer of GaN increases.

The study of various levels of growth shows an improvement of the morphological, electric, structural and optical quality when the thickness of the layer of GaN increases. Afterward, we appear a systematic study of the doping of type p in GaN by using the magnesium. The evoked parameters are the debit of TMG, the debit of Cp2Mg and the temperature of growth. Once the optimal conditions of GaN:Mg are obtained and having to study the effect of the duration of sending of TMG and the temperature of growth of doped GaN silicon, we realized two types of blue électroluminescentes diodes; the first one typifies on base of a homojonction p/n and the second type with the insertion of five standard quantum wells InGaN.
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https://tel.archives-ouvertes.fr/tel-00114809
Contributor : Zohra Benzarti Eps Khalfallah <>
Submitted on : Friday, November 17, 2006 - 4:27:27 PM
Last modification on : Wednesday, October 21, 2020 - 10:02:19 AM
Long-term archiving on: : Tuesday, April 6, 2010 - 6:42:34 PM

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  • HAL Id : tel-00114809, version 1

Citation

Zohra Benzarti. Qualification des Nitrures de Gallium pour les
Dispositifs Optoélectroniques : Application aux
Diodes Electroluminescentes bleues. Matière Condensée [cond-mat]. Faculté des Sciences de Tunis, 2006. Français. ⟨tel-00114809⟩

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