Charged exciton dynamics in GaAs quantum wells

Victoria Ciulin, Benoît Marie Joseph Deveaud, Jean-Daniel Ganière
1998
Journal paper

Abstract

We study the dynamics of the charged and neutral excitons in a modulation-doped GaAs quantum well by time-resolved photoluminescence under a resonant excitation. The radiative lifetime of the charged exciton is found to be surprisingly short, 60 ps. This time is temperature independent between 2 and 10 K, and increases by a factor of 2 at 6 T. We discuss our findings in view of present theories of exciton radiative decay. [S0163-1829(98)03143-9].

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https://infoscience.epfl.ch/record/111028?ln=en

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