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CuPt-B Ordered Microstructures in GaInP and GaInAs Films

Published online by Cambridge University Press:  10 February 2011

S. P. Ahrenkiel ,
K. M. Jones ,
R. J. Matson ,
M. M. Al-Jassim ,
Y. Zhang ,
A. Mascarenhas ,
D. J. Friedman ,
D. J. Arent ,
J. M. Olson  and
M. C. Hanna
S. P. Ahrenkiel
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
K. M. Jones
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
R. J. Matson
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
M. M. Al-Jassim
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
Y. Zhang
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
A. Mascarenhas
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
D. J. Friedman
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
D. J. Arent
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
J. M. Olson
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
M. C. Hanna
Affiliation:
National Renewable Energy Laboratory, Golden, Colorado 80401
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Abstract

We examine CuPt-B atomic sublattice ordering in Ga0.51In0.49P (GaInP) and Ga0.47In0.53As (GaInAs) III-V alloy films grown by atmospheric- and low-pressure metalorganic chemical vapor deposition on singular and vicinal (001) substrates. The influences of growth conditions and substrate miscut on double- and single-variant ordered microstructures are investigated using transmission electron microscopy (TEM). Relatively thick (>1–2 litm) double-variant ordered GalnP and GaInAs films show complementary superdomain formation. Single-variant ordered films on <111>B-miscut substrates contain single-phase domains, separated by antiphase boundaries (APBs). The appearance of APBs in TEM dark-field images is anticipated from electron diffraction theory.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 583 , 1999 , 243
Copyright
Copyright © Materials Research Society 2000

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References

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