| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10155758 | Superlattices and Microstructures | 2018 | 18 Pages |
Abstract
Density and spin dynamics of indirect excitons in asymmetric GaAs/AlGaAs coupled quantum wells is studied by time-resolved photoluminescence. Under electric bias applied in the growth direction the lifetime of indirect excitons formed by an electron in a wide and hole in a narrow quantum well reaches 12â¯ns, while the circular polarisation lifetime is about 5â¯ns. The structure is suited for further studies of dark indirect excitons by time-resolved pump-probe spectroscopy.
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Materials Science
Electronic, Optical and Magnetic Materials
Authors
C. Abbas, F. Chiaruttini, S. Cronenberger, D. Scalbert, F. Dubin, A. Lemaître, M. Vladimirova,