Effect of Te as a surfactant on the optical properties of InAs self-assembled quantum dots

Effect of Te as a surfactant on the optical properties of InAs self-assembled quantum dots

We report on optical experiments in self-assembled InAs quantum dots grown on (100) and (311)A GaAs surfaces which were precovered with Te. We observe a strong reduction of the luminescence intensity with increasing Te coverage in the (100)-oriented samples. The Te-induced luminescence reduction is,...

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Veröffentlicht in:Applied physics letters 1997-07, Vol.71 (4), p.521-523
Hauptverfasser: Sáfar, G. A. M., Rodrigues, W. N., Cury, L. A., Chacham, H., Moreira, M. V. B., Freire, S. L. S., de Oliveira, A. G.
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Sprache:eng
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Zusammenfassung:We report on optical experiments in self-assembled InAs quantum dots grown on (100) and (311)A GaAs surfaces which were precovered with Te. We observe a strong reduction of the luminescence intensity with increasing Te coverage in the (100)-oriented samples. The Te-induced luminescence reduction is, however, much smaller in the (311)A oriented samples.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119597