Photoluminescence spectroscopy of trions in quantum dots: A theoretical description
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Photoluminescence spectroscopy of trions in quantum dots: A theoretical descriptionData de publicació
2008Editor
American Physical SocietyISSN
10980121Tipus de document
info:eu-repo/semantics/articleVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
We present a full configuration-interaction study of the spontaneous recombination of neutral and singly
charged excitons trions in semiconductor quantum dots from weak- to strong-coupling regimes. We find that
the ... [+]
We present a full configuration-interaction study of the spontaneous recombination of neutral and singly
charged excitons trions in semiconductor quantum dots from weak- to strong-coupling regimes. We find that
the enhancement of the recombination rate of neutral excitons with increasing dot size is suppressed for
negative trions and even reversed for positive trions. Our findings agree with recent comprehensive photoluminescence
experiments in self-assembled quantum dots P. Dalgarno et al., Phys. Rev. B 77, 245311 2008
and confirm the major role played by correlations in the valence band. The effect of the temperature on the
photoluminescence spectrum and that of the ratio between the electron and hole wave-function length scales
are also described [-]
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