Dependence of the optical properties of semiconductor alloys on the degree of long-range order

19 April 1993

journal article
Published by AIP Publishing in Applied Physics Letters

Vol. 62 (16) , 1937-1939
https://doi.org/10.1063/1.109496

Abstract

Many III-V semiconductor alloys exhibit spontaneous [111] alternate monolayer ordering when grown from the vapor phase. This is manifested by the splitting of the valence-band maximum and by a reduction in the direct band gap. We show here how these features can be used to deduce quantitatively the degree of long-range order in a given sample. Examples are given for Ga0.5In0.5P and Ga0.5In0.5As alloys.

Keywords

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