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.

Original languageEnglish
Pages (from-to)497-500
Number of pages4
JournalJournal of Crystal Growth
Volume117
Issue number1-4
DOIs
Publication statusPublished - 2 Feb 1992

Keywords

  • fluorescence line narrowing
  • photoluminescence spectra
  • strained layer superlattice

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