Rapid radiative decay of charged excitons
- 15 November 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 62 (20) , R13294-R13297
- https://doi.org/10.1103/physrevb.62.r13294
Abstract
We discuss the decay process of free trions, which differs radically from that of the neutral exciton or localized trions. A theoretical model for the decay time of free trions shows that due to the three particle decay process a rapid radiative decay, compared to the neutral exciton, is expected. We demonstrate the rapid decay of negatively charged excitons in remotely doped GaAs/AlGaAs quantum wells (QW’s) experimentally and show the effects of temperature and well-width on the decay of free negatively charged excitons.Keywords
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