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A method for interface shape control during Bridgman type crystal growth of HgCdTe alloysA method is described for interface shape control of Hg(1-x)Cd(x)Te alloys during Bridgman-type crystal growth. The authors have used this method for several years to obtain the flat or convex interface shapes required for simultaneously reducing radial compositional variations and crystal defects. The method turns to advantage the thick-walled, fused-silica ampules required for growing these alloys. A proper combination of furnace geometry (two isothermal zones separated by a thin barrier), upper- and lower-zone temperatures, and growth rate is required. Examples of results are reported.
Document ID
19850066328
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Szofran, F. R.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Lehoczky, S. L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Journal of Crystal Growth
Volume: 70
ISSN: 0022-0248
Subject Category
Solid-State Physics
Accession Number
85A48479
Distribution Limits
Public
Copyright
Other

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