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Optical study of SiGe films grown with low temperature Si buffer

Published online by Cambridge University Press:  18 March 2011

Y. H. Luo
Affiliation:
Device Research Laboratory, Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, CA 90095-1594
J. Wan
Affiliation:
Device Research Laboratory, Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, CA 90095-1594
J. L. Liu
Affiliation:
Device Research Laboratory, Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, CA 90095-1594
K. L. Wang
Affiliation:
Device Research Laboratory, Department of Electrical Engineering, University of California at Los Angeles, Los Angeles, CA 90095-1594
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Abstract

In this work, SiGe films on low temperature Si buffer layers were grown by solid-source molecular beam epitaxy and characterized by atomic force microscope, photoluminescence and Raman spectroscopy. Effects of the growth temperature and the thickness of the low temperature Si buffer were studied. It was demonstrated that using proper growth conditions of the low temperature Si buffer, the Si buffer became tensily strained and gave rise to the compliant effect. High-quality SiGe films with low threading dislocation density have been obtained.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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References

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