Structural studies of natural superlattices in group III-V alloy epitaxial layers

A. G. Norman, T. -Y.seong, I. T. Ferguson, G. R. Booker, B. A. Joyce

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)

Abstract

Structural studies have been performed using transmission electron microscopy and diffraction on III-V ternary and quaternary alloy epitaxial layers. The results revealed that 'natural superlattice' structures had spontaneously formed in some of the layers by phase separation and/or atomic ordering which occurred at the surface during growth. The structure of these natural superlattices and the growth conditions for their occurrence are described and their effect on the electrical and optical properties of the layers, e.g. bandgap narrowing, and possible mechanisms of formation are briefly discussed.

Original languageEnglish
Article number003
Pages (from-to)S9-S15
JournalSemiconductor Science and Technology
Volume8
Issue number1S
DOIs
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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