Other
Scientific paper
Sep 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2554....6b&link_type=abstract
Proc. SPIE Vol. 2554, p. 6-14, Growth and Characterization of Materials for Infrared Detectors II, Randolph E. Longshore; Jan W.
Other
5
Scientific paper
The experimental optical absorption coefficient of HgTe/Hg(subscript 0.32)Cd(subscript 0.68)Te superlattices with a wide range of well and barrier widths have been compared with theoretical calculations. There is good agreement with experiment if the Cd concentration profile across the as-grown interfaces is assumed to have the shape given by an error function together with an additional Cd concentration of 3% in the quantum wells. The latter concentration was experimentally confirmed. If diffusion is responsible for this concentration profile then a dependence on depth should be present, however, none was observed. Therefore the Cd concentration profile across the interfaces of an as-grown HgTe/Hg(subscript 0.32)Cd(subscript 0.68)Te superlattice does not result from interdiffusion of the interfaces during growth. In other words, growth mechanisms do not involve interdiffusion of the interfaces.
Becker Charles R.
Goschenhofer F.
Landwehr Gottfried
Latussek V.
Oehling S.
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