The optical properties of wide bandgap binary II-VI superlattices

K. P. O'Donnell, P. J. Parbrook, F. Yang, X. Chen, D. J. Irvine, C. Trager-Cowan, B. Henderson, P. J. Wright, B. Cockayne

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Optical properties of binary Zn(Cd)S(Se) superlattices are reviewed. The absorption spectra of a range of ZnSe-ZnS strained layer superlattices (SLSs) are compared with the photoluminescence spectra to reveal the effects of disorder. Absorption line positions are accurately predicted in the envelope function approximation. The band offset diagram at heterojunctions in the Zn(Cd)S(Se) family of semiconductors is determined experimentally. The new SLS, CdS-ZnSe, is established as type-II. The effects of disorder on the temperature dependence and temporal decay of short-period common anion SLSs are quantified. Fluorescence line narrowing is reported in CdSe-ZnSe and CdS-ZnSe SLSs.

LanguageEnglish
Pages497-500
Number of pages4
JournalJournal of Crystal Growth
Volume117
Issue number1-4
DOIs
Publication statusPublished - 2 Feb 1992

Fingerprint

Superlattices
superlattices
Energy gap
Optical properties
optical properties
disorders
Anions
Heterojunctions
heterojunctions
Absorption spectra
Photoluminescence
Negative ions
envelopes
Fluorescence
diagrams
Semiconductor materials
anions
absorption spectra
photoluminescence
fluorescence

Keywords

  • fluorescence line narrowing
  • photoluminescence spectra
  • strained layer superlattice

Cite this

O'Donnell, K. P. ; Parbrook, P. J. ; Yang, F. ; Chen, X. ; Irvine, D. J. ; Trager-Cowan, C. ; Henderson, B. ; Wright, P. J. ; Cockayne, B. / The optical properties of wide bandgap binary II-VI superlattices. In: Journal of Crystal Growth. 1992 ; Vol. 117, No. 1-4. pp. 497-500.
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The optical properties of wide bandgap binary II-VI superlattices. / O'Donnell, K. P.; Parbrook, P. J.; Yang, F.; Chen, X.; Irvine, D. J.; Trager-Cowan, C.; Henderson, B.; Wright, P. J.; Cockayne, B.

In: Journal of Crystal Growth, Vol. 117, No. 1-4, 02.02.1992, p. 497-500.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The optical properties of wide bandgap binary II-VI superlattices

AU - O'Donnell, K. P.

AU - Parbrook, P. J.

AU - Yang, F.

AU - Chen, X.

AU - Irvine, D. J.

AU - Trager-Cowan, C.

AU - Henderson, B.

AU - Wright, P. J.

AU - Cockayne, B.

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AB - Optical properties of binary Zn(Cd)S(Se) superlattices are reviewed. The absorption spectra of a range of ZnSe-ZnS strained layer superlattices (SLSs) are compared with the photoluminescence spectra to reveal the effects of disorder. Absorption line positions are accurately predicted in the envelope function approximation. The band offset diagram at heterojunctions in the Zn(Cd)S(Se) family of semiconductors is determined experimentally. The new SLS, CdS-ZnSe, is established as type-II. The effects of disorder on the temperature dependence and temporal decay of short-period common anion SLSs are quantified. Fluorescence line narrowing is reported in CdSe-ZnSe and CdS-ZnSe SLSs.

KW - fluorescence line narrowing

KW - photoluminescence spectra

KW - strained layer superlattice

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