Effect of compositional disorder on the optical properties of Cd1−xZnxTe

Time-resolved as well as time-integrated luminescence of a bulk grown undoped Cd0.12Zn0.88Te crystal is measured to investigate the effect of compositional disorder on the recombination dynamics. The temporal behavior of the neutral-donor-bound exciton emission is well expressed by a simple exponent...

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Bibliographic Details
Published in:Journal of electronic materials 1999-06, Vol.28 (6), p.785-788
Main Authors: Suzuki, K, Seto, S, Imai, K, Sawada, T, Neukirch, U, Gutowski, J
Format: Article
Language:English
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Summary:Time-resolved as well as time-integrated luminescence of a bulk grown undoped Cd0.12Zn0.88Te crystal is measured to investigate the effect of compositional disorder on the recombination dynamics. The temporal behavior of the neutral-donor-bound exciton emission is well expressed by a simple exponential rise and decay. However, non-exponential rise and decay are observed for the acceptor-bound-exciton emission. By introducing an intermediate state for the transition, the temporal behavior of the acceptor bound exciton emission can well be described by a rate equation model. 12 refs.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-999-0070-6