Abstract
We show that a self-organized quantum dot (QD) embedded in a quantum well (QW) can provide better carrier localization compared to the bare QD due to a complex action of three processes, namely, an increase in the QD volume, a change of the QD aspect ratio, and strain redistribution provided by the QW. For an QD and an (,)As QW, we calculate the possible energy benefits of these three contributions and examine the optimal dot-in-well configuration sustaining the interface coherency.
- Received 21 July 2021
- Accepted 8 October 2021
DOI:https://doi.org/10.1103/PhysRevApplied.16.044046
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