Photoluminescence of tetrahedral quantum-dot quantum wells.

@article{Fonoberov2004PhotoluminescenceOT,
  title={Photoluminescence of tetrahedral quantum-dot quantum wells.},
  author={Vladimir A. Fonoberov and Evghenii P. Pokatilov and Vladimir M. Fomin and Jozef T. Devreese},
  journal={Physical review letters},
  year={2004},
  volume={92 12},
  pages={
          127402
        }
}
Taking into account the tetrahedral shape of a quantum-dot quantum well (QDQW) when describing excitonic states, phonon modes, and the exciton-phonon interaction in the structure, we obtain within a nonadiabatic approach a quantitative interpretation of the photoluminescence spectrum of a single CdS/HgS/CdS QDQW. We find that the exciton ground state in a tetrahedral QDQW is bright, in contrast to the dark ground state for a spherical QDQW. The position of the phonon peaks in the… Expand
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