Summary
We implement optical spectroscopy to study charged excitons (trions) in modulation-doped GaAs/AlGaAs quantum wells. We observe for the first time several new trions: the positively charged exciton, the light-hole negatively charged exciton and the triplet state of the negatively charged exciton.
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Finkelstein, G., Bar-Joseph, I. Charged excitons in GaAs quantum wells. Il Nuovo Cimento D 17, 1239–1245 (1995). https://doi.org/10.1007/BF02457195
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DOI: https://doi.org/10.1007/BF02457195