Optical properties of type-I and II quantum dots
This paper focuses on recent results on the optical properties of self-assembled quantum dots involving type-I InGaAs/GaAs and type-II InP/GaAs interfaces. In the first part, we focus on the InGaAs/GaAs quantum dots, that were used to study the influence of a two-dimensional electron gas on the optical emission of single quantum dots. In the second part, we present the results on type-II InP/GaAs quantum dots. In this system, we observed an experimental evidence indicating that the model used to interpret the blue shift of the type-II quantum well optical emission cannot be applied to type-II quantum dots.
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Main Authors: | Iikawa,F., Godoy,M. P. F., Nakaema,M. K. K., Brasil,M. J. S. P., Maialle,M. Z., Degani,M. A., Ribeiro,E., Medeiros-Ribeiro,G., Carvalho Jr.,W., Brum,J. A. |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Física
2004
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Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332004000400004 |
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