Observation of type-I excitons and related confinement effects in type-II superlattices

F. C. Zhang, H. Luo, N. Dai, Nitin Samarth, M. Dobrowolska, J. K. Furdyna

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

CdSe/Zn1-xMnxTe superlattices are characterized by type-II band alignment. We have used these structures to demonstrate that type-II superlattices can exhibit type-I excitons, i.e., excitons which are confined in the same semiconductor layer (either in CdSe or in Zn1-xMnxTe in the present example). Such spatially direct excitons form in a type-II structure when one of the carriers (electron or hole) originates from a well, while the other (hole or electron) originates from a state localized in the barrier, which is typical for subbands at above-barrier energies.

Original languageEnglish (US)
Pages (from-to)3806-3810
Number of pages5
JournalPhysical Review B
Volume47
Issue number7
DOIs
StatePublished - Jan 1 1993

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superlattices
excitons
electrons
alignment
energy

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Zhang, F. C. ; Luo, H. ; Dai, N. ; Samarth, Nitin ; Dobrowolska, M. ; Furdyna, J. K. / Observation of type-I excitons and related confinement effects in type-II superlattices. In: Physical Review B. 1993 ; Vol. 47, No. 7. pp. 3806-3810.
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Observation of type-I excitons and related confinement effects in type-II superlattices. / Zhang, F. C.; Luo, H.; Dai, N.; Samarth, Nitin; Dobrowolska, M.; Furdyna, J. K.

In: Physical Review B, Vol. 47, No. 7, 01.01.1993, p. 3806-3810.

Research output: Contribution to journalArticle

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