214 citations · 1.2k across the 36 of their papers we have counts for
3 papers · 2 filters
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…
Importance of second-order piezoelectric effects in zincblende semiconductors
Gabriel Bester, Xifan Wu, David Vanderbilt +1
We show that the piezoelectric effect that describes the emergence of an electric field in response to a crystal deformation in III-V semiconductors such as GaAs and InAs has stron…