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Optical Absorption Probability for the Zone-Folding Induced Quasi-Direct Gap in Ge(x)Si(1−x)/Si Strained Layer Superlattices

Published online by Cambridge University Press:  28 February 2011

S. A. Jackson  and
R. People
S. A. Jackson
Affiliation:
AT&T Bell Laboratories Murray Hill, New Jersey 07974
R. People
Affiliation:
AT&T Bell Laboratories Murray Hill, New Jersey 07974
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Abstract

Using a realistic zone-folding scheme for a Ge(x)Si(1−x)/Si strained layer superlattice having a Si-like conduction band structure (i.e ≲85% Ge) we calculate the transition probability for the zone-folding induced direct optical gap and compare it with the indirect band gap absorption probability. The results suggest that such zone-folding induced direct optical transitions are promising for optical devices made from Ge(x)Si(1−x)/Si strained layer superlattices and like structures, provided they are fabricated in such a way that the appropriate zone-folding occurs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 56: Symposium H – Layered Structures and Epitaxy , 1985 , 365
Copyright
Copyright © Materials Research Society 1986

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References

1.J. C. Bean in “Proceedings of the First Int'l Symposium on Silicon Molecular Beam Epitaxy”, edited by J. C. Bean (Electrochem. Society, Pennington, N.J., 1985), p. 337.Google Scholar
2. Braunstein, J. R., Moore, A. R. and Herman, F., Phys. Rev.109, 695 (1958).Google Scholar
3. Dresselhaus, G. and Dresselhaus, M. S., Phys. Rev.160, 649 (1967)Google Scholar
4. Bardeen, J., Blatt, F. J. and Hall, L. H., in Photoconductivity Conference, edited by Breckenridge, R. G., Russell, B. R. and E. E. Hahn (John Wiley and Sons, Inc., New York, 1957), pp. 146-154.Google Scholar