Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5357540 | Applied Surface Science | 2015 | 10 Pages |
Abstract
The effect of the introduction of dopants on the morphology of GaSb/GaAs nanostructures is analyzed by HAADF-STEM.1 Our results show the presence of well-developed GaSb QRs2 in both p-doped and n-doped heterostructures. However, in the undoped sample grown under the same conditions such well-developed QRs have not been observed. We found that p-doping with Be stimulates the formation of QRs, whereas n-doping with Te results in the formation of GaSb nanocups. Therefore, the introduction of dopants in the growth of GaSb nanostructures has a significant effect on their morphology.
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Authors
N. Fernández-Delgado, M. Herrera, S.I. Molina, C. Castro, S. Duguay, J.S. James, A. Krier,