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Carrier Transport in GaAs Nanowires Using Surface Acoustic Waves

Published online by Cambridge University Press:  11 January 2012

A. Hernández-Mínguez ,
M. Möller ,
C. Pfüller ,
S. Breuer ,
O. Brandt ,
M. M. de Lima Jr. ,
A. García-Cristóbal ,
A. Cantarero ,
L. Geelhaar  and
H. Riechert
...Show all authors
A. Hernández-Mínguez
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
M. Möller
Affiliation:
Institut de Ciència dels Materials, Universitat de València, E-46071 València, Spain
C. Pfüller
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
S. Breuer
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
O. Brandt
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
M. M. de Lima Jr.
Affiliation:
Institut de Ciència dels Materials, Universitat de València, E-46071 València, Spain
A. García-Cristóbal
Affiliation:
Institut de Ciència dels Materials, Universitat de València, E-46071 València, Spain
A. Cantarero
Affiliation:
Institut de Ciència dels Materials, Universitat de València, E-46071 València, Spain
L. Geelhaar
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
H. Riechert
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
P. V. Santos
Affiliation:
Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117 Berlin, Germany
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Abstract

The oscillating piezoelectric field of a surface acoustic wave (SAW) is employed to transport photoexcited electrons and holes in GaAs nanowires (NWs) transferred to a SAW beam line on a LiNbO3 crystal. We show that carriers generated in the NW by a focused light spot can be acoustically transported to a second location, where they recombine emitting short light pulses. The results presented here demonstrate the high-frequency manipulation of carriers in NWs without the use of electrical contacts, which opens new perspectives for applications in opto-electronic devices operating at GHz frequencies.

Keywords

nanostructureluminescenceacoustic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1408: Symposium BB – Functional Nanowires and Nanotubes , 2012 , mrsf11-1408-bb10-42
Copyright
Copyright © Materials Research Society 2012

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References

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