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- W2020657059 abstract "Using luminescence and luminescence excitation spectroscopy, we have studied a series of very high-quality molecular beam epitaxy grown multiple quantum well and superlattice structures. Reduction of the linewidth and appearance of a splitting of the exciton peaks is observed when the growth process is optimized. This behavior is explained by the enlargement of the growth islands at the GaAs/GaAlAs interfaces. The splitting, observed both in luminescence and in luminescence excitation, is explained by the occurrence of very large, only one monolayer high, interface growth defects. Introduction of larger wells in our structures (+3a/2 or +5a/2) brings a clear confirmation of this attribution. The observed splittings are in good agreement with calculated values." @default.
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- W2020657059 date "1986-03-01" @default.
- W2020657059 modified "2023-10-10" @default.
- W2020657059 title "Photoluminescence study of interface defects in high-quality GaAs-GaAlAs superlattices" @default.
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- W2020657059 doi "https://doi.org/10.1063/1.336476" @default.
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