Growth of straight InAs-on-GaAs nanowire heterostructures
One of the main motivations for the great interest in semiconductor nanowires is the possibility of easily growing advanced heterostructures that might be difficult or even impossible to achieve in thin films. For III-V semiconductor nanowires, axial heterostructures with an interchange of the group...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2011
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| _version_ | 1826262565447008256 |
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| author | Messing, M Wong-Leung, J Zanolli, Z Joyce, H Tan, H Gao, Q Wallenberg, L Johansson, J Jagadish, C |
| author_facet | Messing, M Wong-Leung, J Zanolli, Z Joyce, H Tan, H Gao, Q Wallenberg, L Johansson, J Jagadish, C |
| author_sort | Messing, M |
| collection | OXFORD |
| description | One of the main motivations for the great interest in semiconductor nanowires is the possibility of easily growing advanced heterostructures that might be difficult or even impossible to achieve in thin films. For III-V semiconductor nanowires, axial heterostructures with an interchange of the group III element typically grow straight in only one interface direction. In the case of InAs-GaAs heterostructures, straight nanowire growth has been demonstrated for growth of GaAs on top of InAs, but so far never in the other direction. In this article, we demonstrate the growth of straight axial heterostructures of InAs on top of GaAs. The heterostructure interface is sharp and we observe a dependence on growth parameters closely related to crystal structure as well as a diameter dependence on straight nanowire growth. The results are discussed by means of accurate first principles calculations of the interfacial energies. In addition, the role of the gold seed particle, the effect of its composition at different stages during growth, and its size are discussed in relation to the results observed. © 2011 American Chemical Society. |
| first_indexed | 2024-03-06T19:38:13Z |
| format | Journal article |
| id | oxford-uuid:1fc189a4-10cc-41c6-a0e4-ecdd81d7a28d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:38:13Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:1fc189a4-10cc-41c6-a0e4-ecdd81d7a28d2022-03-26T11:23:46ZGrowth of straight InAs-on-GaAs nanowire heterostructuresJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1fc189a4-10cc-41c6-a0e4-ecdd81d7a28dEnglishSymplectic Elements at Oxford2011Messing, MWong-Leung, JZanolli, ZJoyce, HTan, HGao, QWallenberg, LJohansson, JJagadish, COne of the main motivations for the great interest in semiconductor nanowires is the possibility of easily growing advanced heterostructures that might be difficult or even impossible to achieve in thin films. For III-V semiconductor nanowires, axial heterostructures with an interchange of the group III element typically grow straight in only one interface direction. In the case of InAs-GaAs heterostructures, straight nanowire growth has been demonstrated for growth of GaAs on top of InAs, but so far never in the other direction. In this article, we demonstrate the growth of straight axial heterostructures of InAs on top of GaAs. The heterostructure interface is sharp and we observe a dependence on growth parameters closely related to crystal structure as well as a diameter dependence on straight nanowire growth. The results are discussed by means of accurate first principles calculations of the interfacial energies. In addition, the role of the gold seed particle, the effect of its composition at different stages during growth, and its size are discussed in relation to the results observed. © 2011 American Chemical Society. |
| spellingShingle | Messing, M Wong-Leung, J Zanolli, Z Joyce, H Tan, H Gao, Q Wallenberg, L Johansson, J Jagadish, C Growth of straight InAs-on-GaAs nanowire heterostructures |
| title | Growth of straight InAs-on-GaAs nanowire heterostructures |
| title_full | Growth of straight InAs-on-GaAs nanowire heterostructures |
| title_fullStr | Growth of straight InAs-on-GaAs nanowire heterostructures |
| title_full_unstemmed | Growth of straight InAs-on-GaAs nanowire heterostructures |
| title_short | Growth of straight InAs-on-GaAs nanowire heterostructures |
| title_sort | growth of straight inas on gaas nanowire heterostructures |
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