TITLE

Optically induced transport properties of freely suspended semiconductor submicron channels

AUTHOR(S)
Rossler, C.; Hof, K.-D.; Manus, S.; Ludwig, S.; Kotthaus, J. P.; Simon, J.; Holleitner, A. W.; Schuh, D.; Wegscheider, W.
PUB. DATE
August 2008
SOURCE
Applied Physics Letters;8/18/2008, Vol. 93 Issue 7, p071107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on optically induced transport phenomena in freely suspended channels containing a two-dimensional electron gas. The submicron devices are fabricated in AlGaAs/GaAs heterostructures by etching techniques. The photoresponse of the devices can be understood in terms of the combination of photogating and a photodoping effect. The hereby enhanced electronic conductance exhibits a time constant in the range of 1–10 ms.
ACCESSION #
34135647

 

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