103 citations · 439 across the 12 of their papers we have counts for
13 papers
Electronic structure of self-assembled InAs/InP quantum dots: A Comparison with self-assembled InAs/GaAs quantum dots
Ming Gong, Kaimin Duan, Chuan-Feng Li +3
We investigate the electronic structure of the InAs/InP quantum dots using an atomistic pseudopotential method and compare them to those of the InAs/GaAs QDs. We show that even tho…
Calculation of conduction-to-conduction and valence-to-valence transitions between bound states in (In,Ga)As/GaAs quantum dots
Gustavo A. Narvaez, Alex Zunger
We have calculated the conduction-to-conduction and valence-to-valence absorption spectrum of bound states in (In,Ga)As/GaAs quantum dots charged with up to three electrons or hole…
Excitonic exchange effects on the radiative decay time of monoexcitons and biexcitons in quantum dots
Gustavo A. Narvaez, Gabriel Bester, Alberto Franceschetti +1
Electron-hole exchange interactions split the exciton ground state into "dark" and "bright" states. The dynamics of those states depends on the internal relaxation time between bri…
Carrier relaxation mechanisms in self-assembled (In,Ga)As/GaAs quantum dots: Efficient P -> S Auger relaxation of electrons
Gustavo A. Narvaez, Gabriel Bester, Alex Zunger
We calculate the P-shell--to-S-shell decay lifetime τ(P->S) of electrons in lens-shaped self-assembled (In,Ga)As/GaAs dots due to Auger electron-hole scattering within an atomistic…
Nominally forbidden transitions in the interband optical spectrum of quantum dots
Gustavo A. Narvaez, Alex Zunger
We calculate the excitonic optical absorption spectra of (In,Ga)As/GaAs self-assembled quantum dots by adopting an atomistic pseudopotential approach to the single-particle problem…
Excitons, biexcitons and trions in self-assembled (In,Ga)As/GaAs quantum dots: Recombination energies, polarization and radiative lifetimes versus dot height
Gustavo A. Narvaez, Gabriel Bester, Alex Zunger
We calculate the height dependence of recombination energies, polarization and radiative lifetimes of the optical transitions of various excitonic complexes: neutral excitons (X^0)…