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Alloy Dependent Properties of Excitons and Deep Acceptors in CdZnTe Volume Crystals

Published online by Cambridge University Press:  25 February 2011

B. K. Meyer ,
D. M. Hofmann ,
K. Oettinger ,
W. Stadler ,
Al. L. Efros ,
M. Salk  and
K. W. Benz
B. K. Meyer
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
D. M. Hofmann
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
K. Oettinger
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
W. Stadler
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
Al. L. Efros
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
M. Salk
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
K. W. Benz
Affiliation:
Physik - Department E 16, Technische Universität München, James Franck Str., D - 8046 Garching, Germany
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Abstract

Cd1-xZnxTe ZriTe crystals grown by the travelling heater methode (THM) have been investigated by low temperature photoluminescence (PL). The excitonic energy gap as a function of the alloy composition was determined for the complete range of x - 0 to x - 1. The composition dependent broadening of the neutral acceptor bound exciton (A°X) line was measured and compared to theoretical calculations. The Donor - Acceptor pair luminescence in the crystals is a superposition of recombinations due to residual Cu acceptors and A - centers (anion vacancy - donor pairs ).

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 242: Symposium G – Wide Band-Gap Semiconductors , 1992 , 209
Copyright
Copyright © Materials Research Society 1992

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References

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