Optical properties of (AlAs)n(GaAs)n superlattices grown by metalorganic chemical vapor deposition
- 1 October 1985
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 58 (7), 2691-2695
- https://doi.org/10.1063/1.335905
Abstract
Optical properties were investigated on the superlattices with a unit lattice period of (AlAs)n(GaAs)n (n=1–24) which were grown by atmospheric‐pressure metalorganic chemical vapor deposition. Raman spectroscopy indicated that superlattice structure is realized for each n without collapsing into alloys. Photoluminescence measurement indicated that the ultrathin‐layer superlattice (with n larger than 2) has a direct energy gap, which is in good agreement with a tight‐binding calculation.Keywords
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