Real-time dynamics of the acoustically induced carrier transport in GaAs quantum wires -: art. no. 161305

被引：16

作者：

Alsina, F

Santos, PV

Schönherr, HP

Nötzel, R

Ploog, KH

机构：

[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

[2] Eindhoven Univ Technol, COBRA Interuniv Res Inst, NL-5600 MB Eindhoven, Netherlands

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.67.161305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the dynamics of the ambipolar transport of photogenerated electrons and holes induced by surface acoustic waves in GaAs quantum wires by using photoluminescence measurements with spatial and temporal resolutions. This technique allows us to trace the trajectory of charge packages in real time and to access the dynamics of radiative trapping centers. We identify two different kinds of trapping defects, which capture preferentially either holes or electrons.

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页数：4

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