Electric-field-induced exciton transport in coupled quantum well structures
- 10 July 1995
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 67 (2) , 232-234
- https://doi.org/10.1063/1.114677
Abstract
We report a conceptionally new approach to achieve electrostatically induced transport and confinement for spatially indirect excitons. Experimentally, exciton transport is demonstrated in an electric-field-tunable GaAs/AlAs coupled quantum well structure, which is configured as a three-terminal device. In spatially resolved photoluminescence experiments, it is shown that indirect excitons experience a drift field, which is given by an electrostatically induced band-gap gradient in the plane of the coupled quantum well structure.Keywords
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