Abstract
We report on an experimental study, using continuous-wave and time-resolved photoluminescence spectroscopy, of the carrier capture into double-quantum-well structures. We observe oscillations in the carrier collection efficiency as a function of the excitation energy; the counter-phased modulations of the photoluminescence excitation spectra of the two wells clearly demonstrate a competition in the carrier capture into the wells. The time-resolved measurements provide a direct insight on the dynamics of the capture process.
- Received 6 February 1997
DOI:https://doi.org/10.1103/PhysRevB.56.9228
©1997 American Physical Society