Electric‐field‐induced exciton transport in coupled quantum well structures
作者:
M. Hagn,
A. Zrenner,
G. Bo¨hm,
G. Weimann,
期刊:
Applied Physics Letters
(AIP Available online 1995)
卷期:
Volume 67,
issue 2
页码: 232-234
ISSN:0003-6951
年代: 1995
DOI:10.1063/1.114677
出版商: AIP
数据来源: AIP
摘要:
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. ©1995 American Institute of Physics.
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