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Light-current characteristics of quantum dots with localized recombination
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View: Figures


Image of FIG. 1.
FIG. 1.

Computed relation between the radiative recombination rate and the total recombination current (radiative plus nonradiative rates) for the ground state alone for cases where the overall electron and hole distributions are in equilibrium and individual dots are not neutral, and the case where each dot is occupied with equal numbers of electrons and holes, the neutral case.

Image of FIG. 2.
FIG. 2.

Computed dependences of the ground state radiative and nonradiative recombination rates on the total number of electrons in the dot system expressed as a fractional population relative to the number of dots. The two processes depend upon electron number in a similar way for each scenario but these dependences are very different for the neutral and non-neutral cases.

Image of FIG. 3.
FIG. 3.

Computed dependences of the radiative recombination rates on total current, for the non-neutral case, and where the wetting layer in included. The overall behavior is dominated by the wetting layer.


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Scitation: Light-current characteristics of quantum dots with localized recombination