Monolayer thickness fluctuations in infrared photoluminescence for [211]-oriented HgTe-CdTe superlattices

Monolayer thickness fluctuations in infrared photoluminescence for [211]-oriented HgTe-CdTe superlattices

We report the observation of multiple photoluminescence peaks due to monolayer thickness fluctuations in HgTe-CdTe superlattices. The spectra for seven different [211]-oriented superlattices with band gaps varying from 133 to 495 meV exhibit double peaks, and in nearly all cases the energy splitting...

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Veröffentlicht in:Applied physics letters 1994-01, Vol.64 (5), p.545-547
Hauptverfasser: Meyer, J. R., Reisinger, A. R., Harris, K. A., Yanka, R. W., Mohnkern, L. M.
Format: Artikel
Sprache:eng
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Zusammenfassung:We report the observation of multiple photoluminescence peaks due to monolayer thickness fluctuations in HgTe-CdTe superlattices. The spectra for seven different [211]-oriented superlattices with band gaps varying from 133 to 495 meV exhibit double peaks, and in nearly all cases the energy splitting corresponds to a difference of ≊1.5 ML in the quantum well thickness.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.111098