Abstract
The distribution of the fine-structure splitting and of the biexciton binding energy are measured in a series of annealed InAs quantum dots. We find a decrease of from to with increasing annealing temperature, indicating a symmetrizing of the in-plane confinement potential. The biexciton binding energy shows only a weak dependence on the confinement energy, which we attribute to a compensation between decreasing confinement and decreasing separation of electron and hole.
- Received 27 November 2003
DOI:https://doi.org/10.1103/PhysRevB.69.161301
©2004 American Physical Society