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Experimental Confirmation of the Donor-Like Nature of DX in AlGaAs

Published online by Cambridge University Press:  25 February 2011

T.W. Dobson  and
J.F. Wager
T.W. Dobson
Affiliation:
Tektronix, Inc., Beaverton, OR 97077
J.F. Wager
Affiliation:
Department of Electrical and Computer Engineering, Center for Advanced Materials Research, Oregon State University, Corvallis, OR 97331
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Abstract

Transient decay of persistent photoconductivity (TDPPC) is employed to assess the donor- or acceptor-like nature of the DX defect in AlGaAs. The TDPPC data is analyzed in terms of the non-equilibrium capture kinetics of DX and a variation in the mobility due to ionized impurity scattering as calculated by the Brooks-Herring equation. TDPPC measurements show DX to be donorlike.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 148: Symposium D – Chemistry and Defects in Semiconductor Heterostructures , 1989 , 445
Copyright
Copyright © Materials Research Society 1989

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