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Title: Photoluminescence and stimulated emission in Si- and Ge-disordered Al/sub x/Ga/sub 1-x/As-GaAs superlattices

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.335710· OSTI ID:5784026

Photoluminescence and absorption data are presented on Al/sub x/Ga/sub 1-x/As-GaAs superlattices (SLs) disordered into bulk-crystal Al/sub y/Ga/sub 1-y/As (0< or =y< or =x) by Si or Ge diffusion. The bulk-crystal Al/sub y/Ga/sub 1-y/As produced by impurity-induced disordering (by Al-Ga interchange) is determined by transmission electron microscopy, absorption measurements, and photoluminescence to be homogeneous, with an alloy composition (y) that agrees with the average Al concentration of the SL. For low enough Al concentration (yroughly-equal0.23

Research Organization:
Electrical Engineering Research Laboratory and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
OSTI ID:
5784026
Journal Information:
J. Appl. Phys.; (United States), Vol. 58:1
Country of Publication:
United States
Language:
English