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Dx-Like Centers and Photoconductivity Kinetics in PbTe-Based Alloys

Published online by Cambridge University Press:  10 February 2011

B. A. Akimov ,
V. A. Bogoyavlenskiy ,
V. N. Vasil'kov  and
L. I. Ryabova
B. A. Akimov
Affiliation:
Moscow State University, Moscow 119899, Russia, [email protected]
V. A. Bogoyavlenskiy
Affiliation:
Moscow State University, Moscow 119899, Russia, [email protected]
V. N. Vasil'kov
Affiliation:
Moscow State University, Moscow 119899, Russia, [email protected]
L. I. Ryabova
Affiliation:
Moscow State University, Moscow 119899, Russia, [email protected]
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Abstract

Results of the study of photoconductivity (PC) kinetics, thermally stimulated currents (TSC) and electrothermal instabilities in PbTe(Ga), Pb1−xMnxTe(In) (0<X<0. 11) single crystals and Pb1-x-ySnxGeyTe(In) (0.06<X<0.2; 0.06<Y<0.12) films are presented. The impurity states in these compounds exhibit a DX-like behavior. Reconstruction of the energy spectrum of solid solutions induced by the composition (X,Y) variation allows us to conclude that the metastable electronic states take par in PC kinetics and accelerate the relaxation process when the metastable levels appear inside the energy gap.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 484: Symposium F – Infrared Applications of Semiconductors II , 1997 , 359
Copyright
Copyright © Materials Research Society 1998

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