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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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