Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices
Metamorphic growth presents routes to novel nanomaterials with unique properties that may be suitable for a range of applications. We discuss self-assembled, epitaxial nanowires formed during metalorganic chemical vapor deposition of metamorphic GaAs/GaPAs short-period superlattices. The heterostruc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2017-07-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4985550 |
| _version_ | 1818154542882095104 |
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| author | Nan Zheng S. Phillip Ahrenkiel |
| author_facet | Nan Zheng S. Phillip Ahrenkiel |
| author_sort | Nan Zheng |
| collection | DOAJ |
| description | Metamorphic growth presents routes to novel nanomaterials with unique properties that may be suitable for a range of applications. We discuss self-assembled, epitaxial nanowires formed during metalorganic chemical vapor deposition of metamorphic GaAs/GaPAs short-period superlattices. The heterostructures incorporate strain-engineered GaPAs compositional grades on 6°-<111>B miscut GaAs substrates. Lateral diffusion within the SPS into vertically aligned, three-dimensional columns results in nanowires extending along <110>A directions with a lateral period of 70-90 nm. The microstructure is probed by transmission electron microscopy to confirm the presence of coherent GaAs nanowires within GaPAs barriers. The compositional profile is inferred from analysis of {200} dark-field image contrast and <210> lattice images. |
| first_indexed | 2024-12-11T14:28:10Z |
| format | Article |
| id | doaj.art-77f0ca91e75843d9bfc09b16d8260e9e |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-11T14:28:10Z |
| publishDate | 2017-07-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-77f0ca91e75843d9bfc09b16d8260e9e2022-12-22T01:02:34ZengAIP Publishing LLCAIP Advances2158-32262017-07-0177075319075319-710.1063/1.4985550079707ADVEpitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlatticesNan Zheng0S. Phillip Ahrenkiel1South Dakota School of Mines & Technology, Rapid City, South Dakota 57701 U.S.ASouth Dakota School of Mines & Technology, Rapid City, South Dakota 57701 U.S.AMetamorphic growth presents routes to novel nanomaterials with unique properties that may be suitable for a range of applications. We discuss self-assembled, epitaxial nanowires formed during metalorganic chemical vapor deposition of metamorphic GaAs/GaPAs short-period superlattices. The heterostructures incorporate strain-engineered GaPAs compositional grades on 6°-<111>B miscut GaAs substrates. Lateral diffusion within the SPS into vertically aligned, three-dimensional columns results in nanowires extending along <110>A directions with a lateral period of 70-90 nm. The microstructure is probed by transmission electron microscopy to confirm the presence of coherent GaAs nanowires within GaPAs barriers. The compositional profile is inferred from analysis of {200} dark-field image contrast and <210> lattice images.http://dx.doi.org/10.1063/1.4985550 |
| spellingShingle | Nan Zheng S. Phillip Ahrenkiel Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices AIP Advances |
| title | Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices |
| title_full | Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices |
| title_fullStr | Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices |
| title_full_unstemmed | Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices |
| title_short | Epitaxial nanowire formation in metamorphic GaAs/GaPAs short-period superlattices |
| title_sort | epitaxial nanowire formation in metamorphic gaas gapas short period superlattices |
| url | http://dx.doi.org/10.1063/1.4985550 |
| work_keys_str_mv | AT nanzheng epitaxialnanowireformationinmetamorphicgaasgapasshortperiodsuperlattices AT sphillipahrenkiel epitaxialnanowireformationinmetamorphicgaasgapasshortperiodsuperlattices |