Observation of localized above-barrier excitons in (CdTe)1(ZnTe)2/ZnTe short-period-superlattice multiple quantum wells by photoluminescence spectroscopy

The calculation of energy levels and wave functions of (CdTe)1(ZnTe)2/ZnTe short-period- superlattice multiple quantum wells is performed. It indicates that there may be above-barrier excitons localized in the ZnTe barrier layer. The photoluminescence arising from recombination of the above-barrier...

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Bibliographic Details
Published in:Applied physics letters 1994-10, Vol.65 (16), p.2090-2092
Main Authors: Lao, Pudong, Guo, Yile, Zheng, Weimin, Siu, G. G., Li, Jie, Yuan, Shixin
Format: Article
Language:English
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Summary:The calculation of energy levels and wave functions of (CdTe)1(ZnTe)2/ZnTe short-period- superlattice multiple quantum wells is performed. It indicates that there may be above-barrier excitons localized in the ZnTe barrier layer. The photoluminescence arising from recombination of the above-barrier excitons has been observed.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.112802