Tunneling in asymmetric double quantum wells is studied using time-resolved photoluminescence. The photoluminescence lineshape and peak position of the narrow quantum well are strongly influenced by band-gap renormalization caused by the tunneling carriers. Tunneling is quenched in a field regime of ± 10 kV/cm around the ground- state resonance due to excitonic effects.
ASJC Scopus subject areas
- Physics and Astronomy(all)